Seiko Cal. 6645 - 900

This Hand-Winding model from 1969 features a 43mm Titanium case. Powered by the 6645 caliber with 36j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-d0f61ab7f091]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1969

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