Seiko Cal. 3877 - 105

This Spring Drive model from 1976 features a 35mm Two-Tone case. Powered by the 3877 caliber with 33j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-f267e7e5e676]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1976

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