Seiko Cal. 3869 - 763

Seiko 3869-763

The Seiko 3869-763 represents an important milestone in Seiko's 1969 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-a42eb03cbe30]

Also known as: Sumo, Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
36mm
Case Thickness
10.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
White
Jewels
21j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1969

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