Seiko Cal. 6657 - 836

This Spring Drive model from 1982 features a 43mm Two-Tone case. Powered by the 6657 caliber with 25j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-b0633a1309cc]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1982

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