Seiko Cal. 3837 - 662

This Spring Drive model from 1971 features a 36mm Two-Tone case. Powered by the 3837 caliber with 19j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-22ea788138bb]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1971

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