Seiko Cal. 7055 - 643

Seiko 7055-643

The Seiko 7055-643 represents an important milestone in Seiko's 1971 lineup. Powered by the 7055 caliber with 22j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-ba6c8827b3e8]

Also known as: Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
45mm
Case Thickness
9.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Black
Jewels
22j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1971

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