Seiko Cal. 6237 - 904

The Seiko 6237-904 represents an important milestone in Seiko's 1978 lineup. Powered by the 6237 caliber with 29j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-fc1d55048292]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1978

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