Seiko Cal. 7190 - 645

The Seiko 7190-645 represents an important milestone in Seiko's 1972 lineup. Powered by the 7190 caliber with 21j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-76ff81276019]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1972

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