Seiko Cal. 7138 - 720

Released in 1974, the Cal. 7138 with design code 720 was part of Seiko's domestic market collection. It features a Cream dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-fa047d249e5f]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1974

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