Seiko Cal. 5638 - 645

The Seiko 5638-645 represents an important milestone in Seiko's 1996 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-c1ae3cbe0ece]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1996

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