Seiko Cal. 5666 - 378

This Hand-Winding model from 1978 features a 38mm PVD Black case. Powered by the 5666 caliber with 35j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-78d76c210b39]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1978

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