Seiko Cal. 6139 - 667

This Spring Drive model from 1975 features a 37mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-2807790441c0]

Also known as: Rally, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1975

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