Seiko Cal. 3876 - 937

The 3876-937 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-1be105f9d3da]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1970

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