Seiko Cal. 7010 - 732

This Spring Drive model from 1971 features a 39mm Hardlex-Coated Steel case. Powered by the 7010 caliber with 20j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-2c5a4ad6d9e5]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1971

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