Seiko Cal. 6257 - 715

The Seiko 6257-715 represents an important milestone in Seiko's 1969 lineup. Powered by the 6257 caliber with 36j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-df2949848aae]

Also known as: World Timer, Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1969

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