Seiko Cal. 4447 - 127

The 4447-127 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4447 caliber with 36j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-0c85ad3d1aea]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1978

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