Seiko Cal. 6645 - 373

This Quartz model from 1967 features a 41mm Stainless Steel case. Powered by the 6645 caliber with 21j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-1d13a439bbe2]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1967

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