Seiko Cal. 4565 - 631

The Seiko 4565-631 represents an important milestone in Seiko's 1983 lineup. It features a Navy dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-582c42e93273]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1983

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