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Topic

Fit and sizing

Case diameter is the number everyone quotes and the least useful one. These pages cover the measurements that decide whether a watch actually sits well on your wrist, and how straps, bracelets and clasps change the answer.

31 pages on this subject.

Answers

Guides

  • Dials, hands and legibility

    How dials are made and finished, what every hand style is called, and the geometry that decides whether a watch is actually readable at a glance.

    Guide · 12 min read

  • Straps and bracelets: a practical guide

    Bracelet types, leather, rubber, mesh and NATO compared on comfort, water tolerance and formality, plus how to change a strap without scratching the lugs.

    Guide · 11 min read

  • Watch sizing and fit: the measurements that matter

    Case diameter is the number everyone quotes and the least useful one. How to measure your wrist, read a spec sheet properly, and test a watch before you buy.

    Guide · 11 min read

Brands

  • Panerai

    Panerai under Richemont: the Italian naval history, the Luminor crown bridge, the P-series calibers, why lug-to-lug decides fit here, and honest resale.

    Brand · 11 min read

Models

  • Cartier Tank

    The Tank family explained: Must against Louis Cartier, which references are quartz and which mechanical, the published case sizes, and the 30 m limit.

    Model · 11 min read

  • Hamilton Khaki Field Mechanical 38mm

    The 38 mm Khaki Field Mechanical uses the hand-wound H-50, 80 hour reserve. What daily winding is like, what 50 meters rules out, and how the 42 mm differs.

    Model · 10 min read

  • Rolex Datejust 36 and 41

    The Rolex Datejust 36 and 41 compared: published specifications, how each size wears, caliber 3235, service costs, allocation and honest secondhand pricing.

    Model · 11 min read

  • Rolex Explorer 36 and 40

    The Rolex Explorer 36 and 40 in detail: published specifications, how each size wears, caliber 3230, servicing costs, allocation and realistic used prices.

    Model · 10 min read

  • Tudor Black Bay Fifty-Eight

    The 39 mm Black Bay Fifty-Eight: MT5402 movement, 70 hours of reserve, COSC certification, and why Tudor's smaller case is the whole reason the watch exists.

    Model · 11 min read

Compare

  • 38mm vs 40mm vs 42mm: which watch size

    Diameter is the least useful of the three size numbers. How lug-to-lug and thickness actually decide fit, with wrist sizes in millimeters and inches.

    Comparison · 9 min read

  • Dive vs field vs dress watch

    Three watch types built around three constraints. What each is engineered for, how each one wears, and which belongs in a small collection.

    Comparison · 9 min read

  • NATO vs leather vs metal bracelet

    Security, water tolerance, comfort and cost compared for the three ways to attach a watch to your wrist, plus how to size each one.

    Comparison · 9 min read

Prices

  • Watch strap and bracelet costs

    What straps and bracelets cost in US dollars: NATO, leather, rubber and metal price bands, spring bars and tools, bracelet sizing fees and the integrated bracelet trap.

    Price guide · 10 min read

Problems

  • My watch irritates my skin

    Nickel allergy, friction and trapped moisture produce three different rashes with three different fixes. How to tell them apart before you replace the watch.

    Fix · 11 min read

  • The strap keeps breaking

    Most watches that fall off a wrist lose a spring bar, not a strap. Why fat bars and drilled lugs matter, and what to replace long before it ever fails.

    Fix · 10 min read

Tools

  • Strap and lug width finder

    Find the right watch strap: lug width, buckle size, spring bar thickness and the strap length for your wrist.

    Watch tool · 9 min read

  • Watch size calculator

    Enter your wrist size in inches and get the case diameter, lug to lug limit, thickness and strap width that will actually fit.

    Watch tool · 8 min read

Glossary