Seiko Cal. 5688 - 443

The Seiko 5688-443 represents an important milestone in Seiko's 1967 lineup. Powered by the 5688 caliber with 33j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-3689465255bc]

Also known as: Sea Horse, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1967

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