Seiko Cal. 4497 - 730

The 4497-730 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4497 caliber with 20j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-a64813cab5cc]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1984

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