Seiko Cal. 3848 - 421

The 3848-421 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3848 caliber with 32j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-a4ff3e1d486e]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1968

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