Guide Nº 07 — Straps & Bracelets

The leather strap,how it's made

LIVE THE WATCHLIFE · REFERENCE EDITION · GUIDE Nº7
The short answer

A leather strap is a sandwich of layers: a top leather, often a padding or stiffening layer, and a lining that touches your skin. The pieces are cut with steel dies, thinned at the edges, glued and pressed, then stitched, edge-finished and punched. The quality of each step shows in how the strap looks, feels and ages.

Key facts

  • Most straps have at least two layers: top leather and lining.
  • Padded (bombé) straps add a filler layer for a raised, rounded shape.
  • Edges are finished one of three ways: painted, burnished or folded.
  • A single strap passes through 10 or more hand and machine steps.

The anatomy of a strap

Layer What it does
Top leather The face you see: colour, texture, character
Padding (optional) Raises the centre for a rounded, cushioned look
Reinforcement A thin stiffener that stops stretching around the holes and spring bar
Lining The skin-side layer; should be soft, breathable and sweat-resistant

The making, step by step

  1. Selecting the hide. The maker grades each hide and marks scars, veins and thin areas to avoid.
  2. Cutting (clicking). Steel dies shaped like the strap are pressed through the leather. Pieces are placed to use the strongest part of the hide.
  3. Skiving. The edges and ends are shaved thinner, so layers fold and join without bulk.
  4. Building the layers. Top leather, padding, reinforcement and lining are glued together and pressed so they bond evenly.
  5. Shaping. Padded straps are pressed to give the raised centre and tapered sides.
  6. Stitching. Thread runs around the edge to lock the layers together. Most straps are machine-stitched; some are hand-stitched with a saddle stitch, which won't unravel if one stitch breaks.
  7. Trimming. The glued sandwich is trimmed to the final shape so all layers meet cleanly.
  8. Edge finishing. The raw edge is sealed (see below).
  9. Punching. Holes are punched at even spacing, plus any micro-adjustment holes.
  10. Keepers and channel. Keepers (the loops) are made and fitted; the channel for the spring bar is formed at each end.
  11. Hardware and inspection. Buckle and spring bars are fitted, and every strap is checked for stitching, edges, symmetry and finish.

Three ways to finish an edge

Edge How it's done Look and wear
Painted (inked) Several coats of edge paint, sanded between coats Clean, modern, colour-matched; the most common on quality straps
Burnished The edge is sanded and rubbed with friction and wax until smooth Natural, glossy; suits vegetable-tanned leather
Folded (turned) The top leather wraps around the edge and is glued under Soft, rounded, very refined; the most labour-intensive

Stitching styles

Stitching is both structure and style. Matching thread disappears for a dressy look. Contrast thread (cream on brown, say) looks sporty and casual. Unstitched straps rely on glue and pressing for a minimal look. Stitch density matters too: neat, even, close stitches signal care.

Handmade, semi-handmade, industrial

Handmade straps are cut, stitched and finished by one craftsperson. Semi-handmade workshops use machines for cutting and pressing, and hands for edges and finishing; this is where most quality straps are made. Industrial production runs at volume with automated steps, and quality depends heavily on the leather and the checks.

Still wondering?

What is a bombé strap?

A padded strap with a raised, rounded centre. The name comes from the French for "curved" or "domed".

Is hand-stitched better than machine-stitched?

Hand saddle stitching is more resistant to unravelling, but well-made machine stitching is strong and neat. Leather quality and edge finishing matter just as much.

Why do some strap edges crack?

Thin or poorly applied edge paint cracks with flexing. Good painted edges have several sanded layers.

What is the lining for?

Comfort, strength and sweat resistance. A poor lining wears out first and can irritate skin.

Keep reading: Leather grades, and what "genuine" really means · A good strap, how to spot one · Strap care, material by material