Seiko Cal. 6313 - 668

Seiko 6313-668

The 6313-668 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-2d371d15b1d0]

Also known as: Monster, World Timer

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
15.1mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Navy
Jewels
29j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1999

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