Seiko Cal. 4580 - 436

The Seiko 4580-436 represents an important milestone in Seiko's 1972 lineup. Powered by the 4580 caliber with 27j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-cc5c2a536e58]

Also known as: Sumo, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1972

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