Seiko Cal. 6387 - 913

This Spring Drive model from 1979 features a 41mm Two-Tone case. It features a Navy dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-88e7008c47e4]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1979

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