Lug to Lug Finder Horological database

El Primero A3817 37mm

A3817

Lug-to-lug 47 mm 1.85 in
Case 37 mm 1.46 in
Thickness Not provided Not provided
Lug width Not provided Not provided

How it wears

Wears larger than its 37 mm case suggests

Zenith El Primero A3817 37mm measures 47 mm lug-to-lug on a 37 mm case, a lug-to-lug ratio of 1.27 against a database median of 1.18. That span is shorter than 47% of the 7,413 watches in this database and shorter than 20% of the 59 Zenith watches listed.

A flat wrist width of 53 mm (2.09 in) or more keeps it in the balanced range, and from 63 mm (2.48 in) it starts to look compact. Below 47 mm (1.85 in) the lugs are likely to overhang the wrist. Flat wrist width is measured straight across the top of the wrist, not around it.

Wrist fit analyzer

Fit reference

CompactBalancedLargeEdgeOverhang
Balanced

Sits comfortably within the wrist width for most wearers.

Sources

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