Seiko Cal. 6684 - 187

Seiko 6684-187

The Seiko 6684-187 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-125bcc1a53b3]

Also known as: Navigator, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
13.8mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
White
Jewels
23j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1978

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seikata-wm-125bcc1a53b3