Seiko Cal. 0729 - 512

The 0729-512 is a sought-after Automatic piece from Seiko's golden era. Powered by the 0729 caliber with 23j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-69ad279ccdb0]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1978

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