Seiko Cal. 4520 - 105

The Seiko 4520-105 represents an important milestone in Seiko's 1986 lineup. Powered by the 4520 caliber with 23j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-0f4e77036e67]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1986

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