Seiko Cal. 5681 - 730

This Hand-Winding model from 1988 features a 46mm Titanium case. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-e4d75c9fe1be]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1988

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