Seiko Cal. 3837 - 109

The Seiko 3837-109 represents an important milestone in Seiko's 1968 lineup. Powered by the 3837 caliber with 36j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-2a0e1e035b83]

Also known as: Monster, Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1968

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