TOOL 02 • HOROLOGICAL SIMULATOR

Watch Size & Lug Overhang 2D Simulator

Simulate how any watch diameter and lug-to-lug length will sit on your wrist anatomy in real-time to avoid unsightly lug overhang.

Popular Presets:
Don't know your wrist size for watches?
Measure where your watch sits with or without tape.
Flat span: 53 mm
cm
40 mm
mm
mm

* This is the vertical length of the watch. If this exceeds your flat wrist surface, lugs will hover off your wrist!

2D TOP-DOWN FIT SIMULATIONPERFECT FIT
Flat Wrist Span: 53mm
✨ The Golden Ratio (Optimal Fit)

The watch case diameter represents 24.2% of your wrist circumference. Fits flush with zero overhang.

Sweet Spot
36 – 40 mm
Max Safe L2L
50 mm
Strap Spec
120/80 (20mm)
HOROLOGICAL SPECIFICATIONS

Watch Strap & Lug Width Sizing Matrix

Determine two-piece strap lengths and proper lug width pairings for any watch case.

⌚ Watch Strap Length & Lug Width Matrix

Swipe to view all sizes
Strap CategoryWrist Circ (cm)Wrist Circ (in)Strap LengthCommon Lug Widths
Short / XS14.0 - 16.0 cm5.5" - 6.3"110 / 70 mm16mm, 18mm, 19mm
Regular / Medium (Standard)16.0 - 18.0 cm6.3" - 7.1"120 / 80 mm18mm, 20mm, 21mm
Long / L18.0 - 20.5 cm7.1" - 8.1"130 / 85 mm20mm, 22mm, 24mm
Extra Long / XL20.5 - 23.0 cm8.1" - 9.1"140 / 90 mm22mm, 24mm, 26mm

* Strap length notation (e.g. 120/80mm) indicates the long end (with buckle holes) / short end (with buckle attachment).

KNOWLEDGE BASE

Frequently Asked Questions

Everything you need to know about measuring wrists, calculating sizing ease, and choosing between bracelet, watch, and bangle sizes.

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