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Sheffield 1A 40mm
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Sheffield · 1A

Sheffield 1A 40mm

Diver

$228Discontinued
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Case

Diameter
40mm
Thickness
13mm
Lug-to-lug
48mm
Lug width
20mm
Material
Stainless Steel
Water resistance
200m

Crystal & dial

Crystal
Sapphire

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 · 8 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 Steel Automatic (Right or Left)
1A 40mm Steel Automatic (Right or Left)40mm
1A 40mm Steel City
1A 40mm Steel City40mm
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date40mm
1A SCR II Blue
1A SCR II Blue40mm
Alternatives

Market

Retail$228

The forum market

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Active listings0Across watch forums
Closed · 90d0Asking-price history

No forum listings tracked for this watch yet. Market+ adds the weekly trend.

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Sheffield 1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)

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View all alternatives

Community

“

Owners widely praise the Sheffield 1A 40mm for its superb quality, sturdiness, and amazing price, with particular appreciation for its blue dial and strong lume. The watch features a 40mm steel case and a sapphire crystal. One owner notes the bezel action could be crisper. On balance, owners rate the Sheffield 1A 40mm highly for its exceptional value and build quality at the price point.

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