Seiko Cal. 7148 - 817

The 7148-817 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7148 caliber with 31j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-ec2686e200ee]

Also known as: Bullhead, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1994

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