Seiko Cal. 4550 - 331

The Seiko 4550-331 represents an important milestone in Seiko's 1991 lineup. Powered by the 4550 caliber with 23j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-2b61739c4903]

Also known as: Pogue, Panda

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

34mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1991

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