Seiko Cal. 3857 - 845

Seiko 3857-845

The Seiko 3857-845 represents an important milestone in Seiko's 1979 lineup. Powered by the 3857 caliber with 20j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-b18142920cdf]

Also known as: Rally, Navigator

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
43mm
Case Thickness
9.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
White
Jewels
20j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1979

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seikata-wm-b18142920cdf