Seiko Cal. 5645 - 443

This Automatic model from 1972 features a 42mm Two-Tone case. It features a White dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-f2af77b2711b]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1972

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