Seiko Cal. 3855 - 257

The Seiko 3855-257 represents an important milestone in Seiko's 1977 lineup. Powered by the 3855 caliber with 26j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-1506162ab684]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1977

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