Seiko Cal. 3863 - 446

Released in 1981, the Cal. 3863 with design code 446 was part of Seiko's domestic market collection. Powered by the 3863 caliber with 31j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-c97c0ab27abe]

Also known as: Turtle, Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1981

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