Seiko Cal. 7140 - 156

Released in 1972, the Cal. 7140 with design code 156 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-6beddac59eda]

Also known as: Emperor, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1972

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