Seiko Cal. 7148 - 189

The 7148-189 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7148 caliber with 31j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-2b0479670054]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1989

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