Seiko Cal. 5238 - 648

Seiko 5238-648

The 5238-648 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-b3de3c7093e2]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
40mm
Case Thickness
11.2mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Black
Jewels
34j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1987

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