Seiko Cal. 0722 - 636

This Spring Drive model from 1969 features a 38mm PVD Black case. Powered by the 0722 caliber with 24j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-b2b97ad5b542]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1969

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