Seiko Cal. 6681 - 536

The Seiko 6681-536 represents an important milestone in Seiko's 1968 lineup. Powered by the 6681 caliber with 35j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-4ef4cbf7fbe6]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1968

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