Seiko Cal. 4580 - 820

The Seiko 4580-820 represents an important milestone in Seiko's 1974 lineup. Powered by the 4580 caliber with 22j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-4d4703129534]

Also known as: Turtle, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1974

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