Seiko Cal. 5638 - 755

The Seiko 5638-755 represents an important milestone in Seiko's 1991 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-1057db511b4e]

Also known as: World Timer, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1991

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