Seiko Cal. 6257 - 504

This Spring Drive model from 1999 features a 46mm Hardlex-Coated Steel case. Powered by the 6257 caliber with 32j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-b30a02f904ab]

Also known as: World Timer, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1999

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