Seiko Cal. 6631 - 569

Seiko 6631-569

The Seiko 6631-569 represents an important milestone in Seiko's 1990 lineup. Powered by the 6631 caliber with 30j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-eb23cc4e79a6]

Also known as: Golden Tuna, Flighty

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
44mm
Case Thickness
8.8mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
160m
Dial Color
Black
Jewels
30j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1990

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