Seiko Cal. 5631 - 601

The Seiko 5631-601 represents an important milestone in Seiko's 1989 lineup. Powered by the 5631 caliber with 21j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-48a7cfbdbcc5]

Also known as: Panda, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1989

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