20mm Super-O Boyer Watch Band compatible with Seiko Alpinist SARB017 SPB155 SBEJ005 Hamilton Khaki H70455733

Product is as described. Fits my watch like a glove, no issues with installation. Looks really good, significantly improves the look of the watch. Built really well. No rattling, no sharp edges, no hair torn off my arm so far. Clasp seems solid and I feel it won't disengage when I least expect it. It's a bit on the large side but since it's on the other side of the wrist nobody cares.

I bought this for the Seiko Prospex SPB121. Though I enjoy the original leather strap, I wanted a metal bracelet option. One of the requirements was that it needed to curve and sit tightly against the movement case. This did the job and looks incredible. It took a little finessing to get it in place, and it fits like it came with the watch. The band has heft and feels like a quality build. The clasp is sturdy and remains secure. I highly recommend this as a metal band option for your Seiko Prospex.

Good fit and good quality. Links are easy to remove by screw method. Clasp locks properly and bracelet does not rattle like a lot of cheap bracelets. Micro adjust has 6 slots which is great. 2 things i wish it had was on the fly micro adjust without the use of a tool and for the clasp to be a bit thinner. Overall is a good bracelet. It definitely makes the alpinist look even better in my opinion.

Overall this bracelet is well made and nicely finished. My one complaint is that the end links extend rather far past the ends of the lugs, making the overall end-link to end-link span ~53mm versus ~46mm for the lug-to-lug distance. As a result, the watch head sits rather broadly across my ~6 in wrist. I do note that it was really easy to install and fits the case well.

Heads up, this does NOT fit the Hamilton Khaki Field Mechanical 38 MM, H69439931. It’s a 20MM band so it will go on the watch, but the end links don’t properly line up with the watch lugs and it’s just not quite right. Looks pretty bad, and frankly kinda sharp! That being said, the band is REALLY nice quality and I was not wanting to return it. I wanted a solution, and reached out to Strap Co customer service. Told them my issue. They don’t have a band (as of writing this), but Katrina with customer service was super helpful and suggested straight end links, instead of the ones it came with that were curved to fit the Seiko Alpinist or Khaki Murph. They were $20, figured what the heck in a last effort to keep the band. They came from Hong Kong to Tennessee in ONE day, lol. Definitely a surprise. Looks great, check out the pics. This watch has exceptionally long lugs in ration to the small case, and so any band is kinda hard to make it fit just right. Hamilton doesn’t sell just the band, so unless you buy it with a metal band, you’re kinda out of luck. Until now:) I have no idea if the straight end links are on Amazon, might want to go to the Strap Co website. Good luck!

This is a well made stainless steel bracelet. I bought it to switch out the leather strap that came with the Seiko SPJ121. Really works well! Solid clasp as well.

Totally satisfied, great look, great fit. Easy to adjust (removal of links).

Bought this for the green Seiko Alpinist GMT from the Seiko boutique in Osaka, Japan. It comes standard with a leather strap. I asked to buy a metal bracelet (the one the white version comes in) separately, but got an outright no. Searched high and low when I got back to the states and saw several options that claimed proper fit. Saw this listing mentioning fit for the non-GMT Alpinist so I took a chance. Arrived fairly quickly despite having ordered it during that Prime special. Bracelet was protected well for shipment or retail display. The curved portion that butts to the watch is solid as opposed to being bent steel. The curve matches delightfully and fit is snug. Actually looks like it was intended for the Alpinist GMT. In removing links to fit my wrist I see that they are also well made, slightly tapering from wider near the watch to thinner at the clasp. Only part that could be improved is the finish of the clasp - edges are not rounded enough. Overall quality is excellent. The price I paid feels too much, but a lot less than a genuine alpinist bracelet would've cost, if I could find it at all. As for cheaper, generic versions, we'll we know how that goes.

Ótima pulseira, se adapta perfeitamente ao relógio, é muito mais fácil de ajustar que as pulseiras da Seiko e permite uma regulagem fina também com muito mais amplitude que as do fabricante. Recomendo muito!

2日で配達されました。商品の詳細で重量は98gとわかってましたが 実物を手にするとずっしりと重いです。装着は直ぐ出来ました。 コマ調整は1.4ミリの精密ドライバーを使いました。 コマを12時側2つ、6時側2つの計4コマ取りました。 時計の重さと合計すると今まで軽い時計に慣れている私には慣れるまでしばらくかかりそうです。 大変気に入ってます！

Used this on my seiko alpinist spb series. The original leather sucks. And switch into this bracelet. The quality of the bracelet is amazing. The clasp is crisp no loose movements. It’s a little bit on the heavier side but aren’t steel watches heavy aye?! Highly recommend this

Beautiful product, it fits perfectly on my Seiko SPB121J Alpinist. The end links look very nice, it makes the bracelet as it was like a part of the watch case. My Seiko Alpinist looks like a casual field watch before but after I install the bracelet now it looks like an expensive luxurious watch. It makes the green dial popped out more. And by the way you need a spring bar tool to install this because the bracelet is not a quick release type. You also need to have a 1.8 mm flat screwdriver if you need to reduce the bracelet length. Just make sure to make the 6:00 side of the bracelet one link shorter than the 12:00 side so the clasp will stay at center of your wrist. If it’s still a little loose just make some adjustment on the micro-adjuster in the clasp to make a comfortable snug fit. The item was scheduled to arrive on Feb. 05 2026, but it came in 4 days earlier so overall for me it’s a 10/10. Thanks Amazon!

The bracelet fit the Hamilton murph 38mm well and I like it. But the price is not cheap.