Seiko Cal. 3821 - 925

The 3821-925 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3821 caliber with 19j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-019f26801135]

Also known as: Bellmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1976

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