Seiko Cal. 6399 - 155

Seiko 6399-155

The Seiko 6399-155 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-cfc6f7c7f095]

Also known as: Tuna, Sea Horse

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
8.4mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Black
Jewels
18j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1975

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