Seiko Cal. 6636 - 612

The Seiko 6636-612 represents an important milestone in Seiko's 1985 lineup. Powered by the 6636 caliber with 29j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-7f954dbd11f2]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1985

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