Seiko Cal. 0766 - 563

The 0766-563 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0766 caliber with 24j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-9a2fa01b5168]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1971

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