Seiko Cal. 7139 - 255

The Seiko 7139-255 represents an important milestone in Seiko's 1985 lineup. With its 22mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-9e07a396724e]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1985

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