Seiko Cal. 6257 - 700

Seiko 6257-700

The Seiko 6257-700 represents an important milestone in Seiko's 1975 lineup. Powered by the 6257 caliber with 21j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-dd96352b8d6e]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
45mm
Case Thickness
12.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
80m
Dial Color
White
Jewels
21j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1975

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