Seiko Cal. 6648 - 633

This Spring Drive model from 1988 features a 39mm Titanium case. It features a Cream dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-55f57417c1be]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1988

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