Seiko Cal. 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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