Seiko Cal. 5653 - 940

Seiko 5653-940

The Seiko 5653-940 represents an important milestone in Seiko's 1987 lineup. Powered by the 5653 caliber with 28j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-9c3b318e969a]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
45mm
Case Thickness
15.8mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Black
Jewels
28j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1987

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