Seiko Cal. 3852 - 944

The 3852-944 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3852 caliber with 28j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-5ec5451d5a03]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1987

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