Seiko Cal. 6642 - 518

This Hand-Winding model from 1967 features a 44mm Two-Tone case. Powered by the 6642 caliber with 32j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-cd1ca4e777fb]

Also known as: Tuna, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1967

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