Seiko Cal. 6680 - 331

This Automatic model from 1965 features a 36mm Two-Tone case. Powered by the 6680 caliber with 27j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-92a9fdd24ced]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1965

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