Seiko Cal. 6645 - 140

This Quartz model from 1971 features a 35mm Hardlex-Coated Steel case. Powered by the 6645 caliber with 29j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-e3f3ae9dbbc0]

Also known as: Bellmatic, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1971

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