Seiko Cal. 4427 - 869

The 4427-869 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4427 caliber with 36j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-e4d0cd91e7a2]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1977

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