Seiko Cal. 7139 - 752

Released in 1972, the Cal. 7139 with design code 752 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-292f484e04bd]

Also known as: Shogun, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1972

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