Seiko Cal. 6257 - 697

Seiko 6257-697

The 6257-697 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6257 caliber with 29j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-76c7a6d9bfa6]

Also known as: Monster

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
11.0mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Silver
Jewels
29j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1997

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seikata-wm-76c7a6d9bfa6