Seiko Cal. 3874 - 856

This Hand-Winding model from 1985 features a 44mm Hardlex-Coated Steel case. Powered by the 3874 caliber with 25j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-6bbcbbed240a]

Also known as: Navigator, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1985

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