Seiko Cal. 5681 - 748

This Spring Drive model from 1990 features a 42mm Hardlex-Coated Steel case. Powered by the 5681 caliber with 27j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-2aa1d0371733]

Also known as: Turtle, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1990

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