Seiko Cal. 7139 - 730

The Seiko 7139-730 represents an important milestone in Seiko's 1975 lineup. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-3ace07f62fb9]

Also known as: Turtle, World Timer

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1975

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