Seiko Cal. 0781 - 173

The Seiko 0781-173 represents an important milestone in Seiko's 1967 lineup. Powered by the 0781 caliber with 20j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-604f5f67b1b9]

Also known as: Tuna, Rally

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1967

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