Seiko Cal. 6366 - 636

This Spring Drive model from 1973 features a 46mm PVD Black case. Powered by the 6366 caliber with 28j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-01c7c1204ab5]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1973

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