Seiko Cal. 7158 - 723

The Seiko 7158-723 represents an important milestone in Seiko's 1974 lineup. With its 21mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-2c95b17bba6a]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1974

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