Integrated bracelet

On a conventional watch, the case has lugs, the lugs have a measured gap, and any strap of that width will fit. On an integrated bracelet watch, the bracelet's first link is shaped to continue the case, so there is no straight gap and no standard width. The Tissot PRX is a clear example: the 40 mm case has a 12 mm gap between its flanks and the 35 mm has 11 mm, neither of which corresponds to any strap you can buy off a shelf. The design dates from the 1970s and is now everywhere, from the PRX upward.

Where it came from

The format was invented to sell steel at gold prices. Audemars Piguet launched the Royal Oak in 1972 to a design by Gérald Genta, Patek Philippe followed with the Nautilus in 1976, and IWC and Vacheron Constantin produced their own versions within a few years. What all of them share is a case and bracelet drawn as one object rather than as a watch plus a strap, which is why the style is often called the luxury sports watch even when the watch is neither. Tissot's original PRX case dates from 1978 and belongs to the same moment.

How to tell one from a fitted end link

This is the confusion worth settling, because shop copy uses integrated loosely. A Rolex Submariner has a bracelet with curved end links that hug the case and look integrated. It is not. It has conventional lugs, a 20 mm gap and ordinary spring bars, so a 20 mm strap fits it perfectly.

The test is physical, not visual. Look between the case and the first link from the side. If you can see a spring bar spanning a straight gap between two lugs, the watch takes standard straps whatever the end links look like. If the first link pivots on a hidden pin inside a shaped recess, and the case has no parallel lug faces at all, the bracelet is integrated. Our strap and lug width finder assumes a conventional gap, which is exactly why an integrated case defeats it.

How it changes the fit

Integrated bracelets usually start their downward curve immediately, which makes a watch wear smaller than its diameter suggests. That is a genuine advantage on a smaller wrist, and it is why the effective lug to lug matters even more than usual on this style: measure it, because the specification sheet often does not quote it.

Measure the right thing, though. The first link is normally rigid and does not articulate much, so the span that has to sit flat on your wrist is the case plus the first link on each side, not the case alone. On a flat wrist that hardly matters. On a narrow or strongly curved one, it can be the difference between a watch that settles and one that rocks. How a watch should fit covers the general case.

Sizing and adjustment

Adjustment is coarser than on a normal bracelet. Links on an integrated design taper and are often screwed rather than pinned, so removing one takes a length out that you cannot get back in halves unless the brand supplies half links. A clasp with micro-adjustment holes gives you roughly 2 mm steps to cover the way a wrist swells through the day; a plain butterfly clasp, common on integrated designs including the 40 mm PRX, gives you none. Check which you are getting, because the difference is felt every afternoon. See how to shorten a bracelet and the entry on micro-adjustment.

The strap problem

You are buying a watch and a bracelet together, permanently. If you dislike the bracelet, or if a link is lost, or if you want a leather strap in summer, your options are whatever the brand sells and whatever the aftermarket has tooled for that exact case. Some brands now supply a quick-release system and matched straps, which solves most of it. Many do not.

The costs are lopsided. An aftermarket steel bracelet for a conventional watch runs indicatively 60 to 200 US dollars before sales tax and an OEM one 200 to 900, but for an integrated case there may be no aftermarket at all, so a damaged bracelet means a factory part at factory prices. Individual replacement links are cheap in isolation and are frequently discontinued, which is why a listing for a used integrated bracelet watch that is short of links is worth noticeably less. Our strap and bracelet costs page has the wider figures, all indicative and moving with market and availability.

What to check before you buy

Four questions answer most of it. Does the clasp have micro-adjustment. Does the brand still sell replacement links for this reference, and at what price. Does any alternative strap exist, from the brand or anyone else. And is the bracelet stretched, which on a used watch shows as a wavy sag when you hold it horizontally by one end; our page on a bracelet that rattles or stretches explains what can and cannot be fixed. For the wider picture, see straps and bracelets.