Seiko Cal. 6164 - 687

Seiko 6164-687

The Seiko 6164-687 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2a5d38b54f86]

Also known as: Sumo, UFO

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
9.9mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Navy
Jewels
36j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1975

Related Models

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