Seiko Cal. 4460 - 621

The Seiko 4460-621 represents an important milestone in Seiko's 1970 lineup. Powered by the 4460 caliber with 29j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-4a93edd7d2e5]

Also known as: Sumo, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1970

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