Seiko Cal. 4561 - 331

The Seiko 4561-331 represents an important milestone in Seiko's 1997 lineup. Powered by the 4561 caliber with 24j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-3ed880bc5ea2]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1997

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