Seiko Cal. 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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