Seiko Cal. 5645 - 435

The Seiko 5645-435 represents an important milestone in Seiko's 1972 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-bfb2ea2b3b5f]

Also known as: Helmet, Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1972

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