Seiko Cal. 3821 - 101

The 3821-101 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3821 caliber with 34j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-613ff79c5ed9]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1984

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