lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/Sheffield/1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date
SpecStudio
Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date
Click to inspect
Sheffield · 1A

Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date

Diver

$238Sold out

Case

Diameter
40mm
Thickness
12.8mm
Lug-to-lug
46mm
Lug width
20mm
Material
Stainless Steel
Water resistance
200m

Crystal & dial

Crystal
Sapphire
Dial colour
White/Blue
Lume
Swiss blue lume

Movement

Caliber
Seiko NH35
Type
Automatic

Seiko

Seiko's third-party supply version of the 4R35, sold to external watch brands and modders worldwide. Adds hacking and hand-winding over the 7S26 it effectively replaced. The NH35 has become the default automatic movement for watch modding and microbrand watches, thanks to its low cost, reliability, and wide availability of compatible parts including dials, hands, and cases in the Seiko-compatible format.

Design language

Case shape
round
Dial style
matte
Bezel
rotating
Bracelet
rubber
Hands
baton

AI-detected from the product image

1A collection · 6 watches

1A
1A40mm
1A 38
1A 3838mm
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)38mm
1A 40mm
1A 40mm40mm
1A SCR II Blue
1A SCR II Blue40mm
Alternatives

01The market

Market prices.

Retail$238

No forum listings recorded for this watch yet.

02The connection engine

More like this.

Sheffield 1A SCR II Blue

Sheffield

1A SCR II Blue

40mm · Automatic$278

Sheffield 1A 40mm

Sheffield

1A 40mm

40mm · Automatic$228

Phoibos Argo

Phoibos

Argo

40.5mm · Automatic$345

Spinnaker Spence 300

Spinnaker

Spence 300

40mm · Automatic$650

Oceanica Watch Co. Thresher

Oceanica Watch Co.

Thresher

40mm · Automatic$300

Boldr The T Rex By Boldr X Nitecore

Boldr

The T Rex By Boldr X Nitecore

40mm · Automatic$499

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date is an automatic diver watch, with a 40mm stainless steel case, 12.8mm thick, powered by the Seiko NH35 movement. Water resistance is rated to 200m, under a sapphire crystal. Manufacturer MSRP is $238. The dial color is white/blue.

Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

Ask the communityStart a discussion about the 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date: get takes from other collectors.Ask →

05The discussion

Talk about the Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date.