Anyone got the Seiko SPB151J1...Willard??

[Lol-x]

This is known as "The Willard", its a cool watch re-interpretation of the classic 1970's 6105.

[powerfunk]

I love mine! I actually find its quality similar to a 16610. Machined clasp, good bezel and winding feel. A whole lotta watch for 1k!

[Lol-x]

Sweeet..

70 hour power reserve and 20mm lug dropouts are both pretty cool.

How do you find it for wrist comfort?

[powerfunk]

I find it quite comfortable. Seems to naturally balance nicely in the middle of the wrist

[Reelandy]

Originally Posted by powerfunk

I find it quite comfortable. Seems to naturally balance nicely in the middle of the wrist

I second the comfort. You would think that it would sit awkwardly given that it’s not the slimmest of watches but it’s the opposite. Very well balanced on the wrist.




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[1William]

I own several of these models. They are great. I prefer them on straps or NATO's but the bracelets work very well. The SPB153 in flat green is a real winner for me. Same watch but in green.

[Lol-x]

I like how the bevel around the edge of the sapphire crystal refracts and visually duplicates the minute markings. This is true to the original 6105 model.

The steel bracelet looks a bit clunky, I'm sure there are better options out there like the Seiko Jubilee or some other standard oyster style bracelet. The only issue is going to be the endlink (20mm) fitting flush with the case.

[CPRWATCH]

I have the green Willard & it’s a great watch , & It wears well on a nato . Definitely worth picking one up , it’s just which one you prefer .

[Lol-x]

I think this watch wears much flatter on the wrist if you wear it on a bracelet or a non-nato strap as the strap running under the case elevates it off the wrist somewhat.

[Lol-x]

It's this designed after a sting ray??

[Db7566]

Double the minute markers.

Flat seven inch wrist.

It makes me just as happy as my 114060.


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[cajunron]

I really want one of these, Steveo. I like the blue SBDC123. Might be my next piece.

[Lol-x]

The Willard wears really nicely on the wrist with the steel bracelet from Seiko, but there are many options.

The blue dial is interesting but I prefer the traditional matt black in keeping with the icon from the movie....and what was worn by many military personnel over the years.

[Lol-x]

The stainless steel case on this watch almost looks like titanium, I think it is the 'Dia-shield' coating that makes it look a grey colour. Its shiny but not shiny silver, its a shiny grey.

[Lol-x]

I got to put my watch on a timegrapher today:

Seiko-Timegrapher-5-5-22.jpg

I have been monitoring the watch and it has been gaining 11-12 seconds per day. So the timegrapher result is very accurate to my actual experience.

The movement does require adjustment. It's such a shame that Seiko doesn't adjust these watches before they leave the factory, but I guess they make the watches available at a cheaper price point.

What is the situation with the amplitude of 241 degrees? Is that somewhat lower than should be expected for a 2 month old watch?

[Old Expat Beast]

Put the watch on the timegrapher face-down, it might show a good improvement. A couple of my Seiko divers do, and so I leave them face-down overnight. Amplitude is on the low side if it's fully wound. Beat error is fine.

[Lol-x]

Originally Posted by Old Expat Beast

Put the watch on the timegrapher face-down, it might show a good improvement. A couple of my Seiko divers do, and so I leave them face-down overnight. Amplitude is on the low side if it's fully wound. Beat error is fine.

It does show a slight improvement with face down, but I don't wear it face down during the day. When I leave it face down during the night, it is still overall 10+ to 12+ seconds over 24 hours.

Its now showing +13 seconds per day and 227 degrees in amplitude...

[Andad]

Originally Posted by Lol-x

It does show a slight improvement with face down, but I don't wear it face down during the day. When I leave it face down during the night, it is still overall 10+ to 12+ seconds over 24 hours.

Its now showing +13 seconds per day and 227 degrees in amplitude...

Is that the amplitude when fully wound Steve?

When fully wound what are the readings in the positions?

[Gary Busey]

Originally Posted by Lol-x

It does show a slight improvement with face down, but I don't wear it face down during the day. When I leave it face down during the night, it is still overall 10+ to 12+ seconds over 24 hours.

Its now showing +13 seconds per day and 227 degrees in amplitude...

6r35 movement leaves much to be desired….


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[Lol-x]

When fully wound it is doing +11 second power day with about 250 degrees amplitude and 0.2ms best error.

[saxo3]

Originally Posted by Lol-x

When fully wound it is doing +11 second power day with about 250 degrees amplitude and 0.2ms best error.

I assume that is for dial up?

What are the results for the vertical positions?
Are you sure about the 53 degrees lift angle?

1 degree change in the timegrapher settings results in about 6-7 degrees change in amplitude; the higher the lift angle the higher the amplitude value.

250 degrees (after full winding) in horizontal position is not much compared to a 31xx or 32xx Rolex caliber. But it can be still good depending on how much it decreases during 24 hours at rest.

[gnuyork]

I've tried the green one (another member's here, actually) on the stock rubber strap, and it was surprisingly comfortable.

I have the normal Turtle and though it's my largest watch. it's very comfortable to wear. This Willard is a bit smaller, therefore probably even better.

[Lol-x]

This is crazy, this morning the watch is reading +2 to +5 seconds with the amplitude 275 degrees and a 0.1ms beat error.
However the watch is running +6 seconds in 12 hours.

Crown up it is showing +10 seconds and 235 degrees with 0.3ms beat error.

This could go on and on, how does one know what is an accurate reading.

Dial down it is +9 seconds and 274 degrees with 0.1ms beat error.

The lift angle of 53 degrees is correct according to Google for this movement.

[Gary Busey]

Originally Posted by Lol-x

This is crazy, this morning the watch is reading +2 to +5 seconds with the amplitude 275 degrees and a 0.1ms beat error.
However the watch is running +6 seconds in 12 hours.

Crown up it is showing +10 seconds and 235 degrees with 0.3ms beat error.

This could go on and on, how does one know what is an accurate reading.

Dial down it is +9 seconds and 274 degrees with 0.1ms beat error.

The lift angle of 53 degrees is correct according to Google for this movement.

6r35 usual shenanigans.
Sla049 solves that. The 8l35b movement is simply
Amazing


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[saxo3]

Originally Posted by Gary Busey

6r35 usual shenanigans.

Sla049 solves that. The 8l35b movement is simply

Amazing

You say the Seiko 6R35 is not accurate and also not precise?

The 6R35 accuracy specs I found:
+/- 20~40 seconds per day.
https://watchandbullion.com/6r15-vs-6r35/

[Gary Busey]

Originally Posted by saxo3

You say the Seiko 6R35 is not accurate and also not precise?

The 6R35 accuracy specs I found:
+/- 20~40 seconds per day.
https://watchandbullion.com/6r15-vs-6r35/

That’s what I’m saying indeed. My main issue with the movement is the poor amplitude and even worse positional variance. Not as bad as the skx but really really not great


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[saxo3]

Originally Posted by Gary Busey

That’s what I’m saying indeed. My main issue with the movement is the poor amplitude and even worse positional variance. Not as bad as the skx but really really not great

You have a complete set (5 positions) of timegrapher data after full winding plus after 24 hours at rest?

[Lol-x]

I saw an online article about the 6R35 calibre movement.
It said to fully wind the power reserve one had to wind the crown a minimum of 55 times.

So I wound it 60 times yesterday and on the timegrapher it showed this today:

Willard-9-5-22.jpg

But now an hour later the timegrapher is showing +8 seconds and 247 degrees and 0.2ms beat error.

So it seems this movement is all over the place, which makes it really hard to regulate. No wonder Seiko gave it a +25 to -15 seconds per day specification.

[Gary Busey]

Originally Posted by Lol-x

I saw an online article about the 6R35 calibre movement.
It said to fully wind the power reserve one had to wind the crown a minimum of 55 times.

So I wound it 60 times yesterday and on the timegrapher it showed this today:

Attachment 1290671

But now an hour later the timegrapher is showing +8 seconds and 247 degrees and 0.2ms beat error.

So it seems this movement is all over the place, which makes it really hard to regulate. No wonder Seiko gave it a +25 to -15 seconds per day specification.

To seikos defence, they really “undersell/overdeliver” on accuracy numbers.
To me, from a movement standpoint Seiko gets interesting at the 8L level. You can get an amazing piece in the secondary market….for a great price. But the 6r35 is just a bit too flimsy…


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[Old Expat Beast]

I usually leave a watch for an hour or so after fully winding to settle down before I put it on the machine, as they usually improve a bit with the s/d rate and beat error by then. Yours seems to have gone back to the numbers you posted the other day after an hour. Still it's not that bad. If I was in the market for that watch and the seller showed me those numbers, I'd still buy it.