Seiko Cal. 6148 - 438

The 6148-438 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6148 caliber with 30j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-46d0f209712c]

Also known as: UFO, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1966

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