Seiko Cal. 3863 - 693

The Seiko 3863-693 represents an important milestone in Seiko's 1970 lineup. Powered by the 3863 caliber with 34j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-523f0d6a079d]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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