Seiko Cal. 6378 - 440

Seiko 6378-440

The 6378-440 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-da4e7e5d3a72]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
45mm
Case Thickness
8.5mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Champagne
Jewels
22j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1970

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