Seiko Cal. 4478 - 171

Seiko 4478-171

The 4478-171 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4478 caliber with 31j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-e2c517a6b255]

Also known as: Monster, Golden Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
15.1mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
White
Jewels
31j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1978

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