Seiko Cal. 5218 - 640

Seiko 5218-640

The 5218-640 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f89cd864adbd]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
36mm
Case Thickness
8.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Champagne
Jewels
31j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1977

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