Seiko Cal. 6610 - 867

This Spring Drive model from 1971 features a 43mm Titanium case. Powered by the 6610 caliber with 34j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-22fb8594582b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1971

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