Seiko Cal. 5645 - 851

The Seiko 5645-851 represents an important milestone in Seiko's 1975 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-f309d999c105]

Also known as: Silverwave, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1975

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