Seiko Cal. 6378 - 511

Seiko 6378-511

The 6378-511 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-f9f7a8588c14]

Also known as: Turtle, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
37mm
Case Thickness
10.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Black
Jewels
30j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1983

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