Seiko Cal. 5257 - 406

This Kinetic model from 1970 features a 39mm Gold-Plated case. Powered by the 5257 caliber with 17j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-9af10363f6e5]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1970

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