Seiko Cal. 7138 - 270

The Seiko 7138-270 represents an important milestone in Seiko's 1973 lineup. With its 18mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-299eef4a919d]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1973

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