Seiko Cal. 5641 - 164

The Seiko 5641-164 represents an important milestone in Seiko's 1988 lineup. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-2295299f0f61]

Also known as: Turtle, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1988

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