Seiko Cal. 6148 - 137

The 6148-137 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6148 caliber with 18j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-fc597177d2ea]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1991

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