Seiko Cal. 6637 - 186

Seiko 6637-186

The 6637-186 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-59a9b7d8291c]

Also known as: UFO, Silverwave

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
35mm
Case Thickness
10.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1989

Related Models

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