Seiko Cal. 6658 - 816

This Spring Drive model from 1969 features a 39mm Two-Tone case. Powered by the 6658 caliber with 25j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-322f370ca02b]

Also known as: Shogun, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1969

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