Seiko Cal. 4556 - 729

Seiko 4556-729

The 4556-729 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4556 caliber with 31j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-56b2d1da134e]

Also known as: Arnie, Flighty

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
44mm
Case Thickness
13.4mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Cream
Jewels
31j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1966

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seikata-wm-56b2d1da134e