Seiko Cal. 7138 - 355

The Seiko 7138-355 represents an important milestone in Seiko's 1974 lineup. With its 18mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-b4d5fc7ea2ca]

Also known as: Panda, Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1974

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