Seiko Cal. 5681 - 840

This Hand-Winding model from 1968 features a 41mm Two-Tone case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-1aca87a0c152]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1968

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