Seiko Cal. 3815 - 448

Seiko 3815-448

The 3815-448 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-eaf4e8027d6e]

Also known as: Rally

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
14.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
180m
Dial Color
Burgundy
Jewels
18j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1971

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