Seiko Cal. 3860 - 258

Seiko 3860-258

The Seiko 3860-258 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-4bf3d3dd3f9d]

Also known as: Monster, Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
35mm
Case Thickness
11.0mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Navy
Jewels
17j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1975

Related Models

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