Seiko Cal. 7017 - 103

The 7017-103 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7017 caliber with 31j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-efda48547a62]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1968

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