Seiko Cal. 3860 - 774

The 3860-774 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-aa952a5c168c]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1984

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