Hemel Nitro — 40mm Automatic Field Watch, Jubilee Bracelet (Seiko YN55A)
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The watch
The Hemel Nitro pairs a 40mm case with an automatic movement. Highlights include 200m water resistance and a sapphire crystal. We place it at Hour IX (Everyday) of the Downtime season, for weekends and off-duty days.
Clean, versatile and mechanical. The Nitro runs the automatic-and-hand-wind Seiko YN55A under a domed dial lit with BGW9 lume, finished on a jubilee-style bracelet with screw pins. A do-anything daily driver with genuine automatic character.
40mm brushed-and-polished 316L steel, domed AR sapphire, 200m water resistance, signed screw-down crown, engraved caseback. New, boxed and warrantied — free US shipping.
Good to know
It uses the Seiko YN55A automatic movement, a self-winding mechanical caliber that stays running from the natural motion of your wrist with no battery to replace.
Yes. With 200m of water resistance it is dive-ready and fully at home with swimming, snorkeling and recreational diving.
The case measures 40mm — a versatile size that suits most wrists (roughly 15.5-19 cm / 6.1-7.5 in). Our watch size guide (/pages/watch-size-guide) explains how to measure your wrist.
The 40mm case wears true to size and versatile, and the stainless steel jubilee bracelet gives it a comfortable, everyday drape.
It is a spirited automatic field watch on a jubilee bracelet, finished with a domed AR-coated sapphire crystal for a clear, characterful read of the dial.
On the ChronoSeasons dial it sits at Hour IX — Everyday, part of the Downtime season, and suits daily wear from morning to evening.
Yes. This Hemel is sourced through Shopify Collective and Hemel's verified channel, so it ships brand-new, boxed and backed by a 2-year limited warranty. US orders include free insured shipping.
From the journal
Owners say
I fly commercial routes out of Seattle and wanted a tough 40mm automatic I wouldn't have to baby on layovers. The rotating bezel is handy for quick elapsed time checks, the 200m water resistance handles hotel pools, and the Classic Blue dial is super legible.
Sized the jubilee for my 7.75-inch wrist in five minutes. Great daily automatic.
Thanks, Julian! Hard to beat a well-sized jubilee bracelet for daily wear.
Been wearing the Nitro to the office and out on weekends. The Classic Blue dial has a much richer tone in real sunlight than in the website photos, and the jubilee bracelet feels great on my wrist.
The bezel markings and bold dial layout on the Classic Blue Nitro give it a cool vintage motorsport timer feel for weekend drives down A1A. The Seiko YN55A automatic has been rock solid. Shipping carrier delayed the box by two days, though the watch itself is great.
Thank you for your patience with the carrier delay, Alexander! Glad the Classic Blue Nitro was worth the extra two days of waiting.
The factory steel jubilee bracelet is comfortable on my wrist, but I also tried it on a 20mm dark brown leather strap for a dressier look. The leather strap I put on was pretty stiff for the first 3-4 days before breaking in, though the Classic Blue dial looks sharp on both.
Picked up the Classic Blue Hemel Nitro for my brother's 40th birthday last month. He wanted an everyday automatic on a jubilee bracelet that could handle swimming with his kids, and the 200m rating plus that deep blue dial made it a home run.
