Seiko Cal. 5640 - 954

This Quartz model from 1966 features a 45mm Stainless Steel case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-bb87a7a4f443]

Also known as: Navigator, Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1966

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