Seiko Cal. 4550 - 766

The Seiko 4550-766 represents an important milestone in Seiko's 1973 lineup. Powered by the 4550 caliber with 21j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-59680d7311d1]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1973

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