Circula Watches ProTrailvsSelten Spiral
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

ProTrail

Spiral
Diameter
40mm
39mm
Lug-to-Lug
46mm
45.5mm
lowest
Thickness
11mm
10.9mm
lowest
Water Resistance
150m
highest
50m
Power Reserve
65h
n/a
Movement
Sellita SW200-1
Soprod M100
Case
5 specsDiameter
40mm
39mm
Thickness
11mm
10.9mm
Lug-to-Lug
46mm
45.5mm
Lug Width
n/a
20mm
Water Resistance
150m
50m
Movement
2 specsCaliber
Sellita SW200-1
Soprod M100
Power Reserve
65h
n/a
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