Seiko Cal. 4597 - 857

This Hand-Winding model from 1978 features a 39mm Titanium case. Powered by the 4597 caliber with 21j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-81c6ad9dadde]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1978

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