Seiko Cal. 3892 - 181

The 3892-181 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-35bc107fddd2]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1969

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