Seiko Cal. 4431 - 477

Seiko 4431-477

The 4431-477 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4431 caliber with 21j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-46e548ba4af4]

Also known as: Arnie

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
15.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
170m
Dial Color
White
Jewels
21j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1975

Related Models

seikata-wm-46e548ba4af4