Seiko Cal. 4540 - 570

Released in 1969, the Cal. 4540 with design code 570 was part of Seiko's domestic market collection. Powered by the 4540 caliber with 33j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-7356e242e6d9]

Also known as: Sumo, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1969

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