Seiko Cal. 7139 - 964

Released in 1977, the Cal. 7139 with design code 964 was part of Seiko's domestic market collection. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-fc87fd18b599]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1977

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