Seiko Cal. 6237 - 109

The Seiko 6237-109 represents an important milestone in Seiko's 1977 lineup. Powered by the 6237 caliber with 36j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-2e60e9c7932b]

Also known as: Sumo, Bullhead

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1977

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