Seiko Cal. 4445 - 321

The Seiko 4445-321 represents an important milestone in Seiko's 1977 lineup. Powered by the 4445 caliber with 17j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-e330881d5194]

Also known as: World Timer, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1977

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