Seiko Cal. 4413 - 161

The Seiko 4413-161 represents an important milestone in Seiko's 1972 lineup. Powered by the 4413 caliber with 17j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-7694a8a40513]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1972

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