Seiko Cal. 3865 - 684

Seiko 3865-684

The Seiko 3865-684 represents an important milestone in Seiko's 1970 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-76d620a5ae0e]

Also known as: Samurai, Bellmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.0mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Navy
Jewels
32j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1970

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