Seiko Cal. 3857 - 963

Seiko 3857-963

The Seiko 3857-963 represents an important milestone in Seiko's 1977 lineup. Powered by the 3857 caliber with 27j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-308ee9dc752e]

Also known as: Monster, UFO

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
44mm
Case Thickness
11.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Champagne
Jewels
27j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1977

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