Seiko Cal. 3881 - 742

The 3881-742 is a sought-after Hand-Winding piece from Seiko's golden era. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-ab86aff8b6a6]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1968

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