Seiko Cal. 4410 - 400

The Seiko 4410-400 represents an important milestone in Seiko's 1971 lineup. Powered by the 4410 caliber with 18j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-8174db7669a7]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1971

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