Seiko Cal. 5681 - 838

This Hand-Winding model from 1980 features a 40mm Two-Tone case. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-a9f7a21eed33]

Also known as: Shogun, Rally

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1980

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