Seiko Cal. 6687 - 538

Seiko 6687-538

The 6687-538 is a sought-after Kinetic piece from Seiko's golden era. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-fb1c5da19f9e]

Also known as: Helmet, Emperor

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
12.3mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
80m
Dial Color
Burgundy
Jewels
36j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1979

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