Seiko Cal. 6634 - 398

This Spring Drive model from 1984 features a 43mm Two-Tone case. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-9c1c13fb8fbe]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1984

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