Seiko Cal. 3863 - 690

Seiko 3863-690

The Seiko 3863-690 represents an important milestone in Seiko's 1986 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-21e56bf0df6e]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
11.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Green
Jewels
23j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1986

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