Seiko Cal. 7138 - 797

Released in 1975, the Cal. 7138 with design code 797 was part of Seiko's domestic market collection. With its 22mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-28a1fb9364de]

Also known as: Sumo, Silverwave

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1975

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