Seiko Cal. 7147 - 864

The 7147-864 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7147 caliber with 23j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-6bc426de5dd8]

Also known as: Helmet, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1991

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