Seiko Cal. 4510 - 647

The Seiko 4510-647 represents an important milestone in Seiko's 1965 lineup. Powered by the 4510 caliber with 36j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-0417a5cf4aac]

Also known as: Sumo, Goldfeather

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1965

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