Seiko Cal. 3827 - 421

The 3827-421 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3827 caliber with 24j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-c42e6c59d207]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1965

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