Seiko Cal. 5257 - 160

This Kinetic model from 1965 features a 40mm Hardlex-Coated Steel case. Powered by the 5257 caliber with 23j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-5d20a67bd7ff]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1965

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