Seiko Cal. 5641 - 605

Released in 1979, the Cal. 5641 with design code 605 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-eeaee7cf5776]

Also known as: Turtle, Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1979

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