Seiko Cal. 5643 - 627

The Seiko 5643-627 represents an important milestone in Seiko's 1970 lineup. It features a Navy dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-79794dff5579]

Also known as: Navigator, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1970

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