Seiko Cal. 4557 - 506

The 4557-506 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4557 caliber with 27j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-3cdefda7820f]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1972

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