If you could only own one watch, what would it be? Ten picks from €100 to €9,800, chosen for versatility (jeans to suit), easy ownership and 20 years of wear.
A one-watch is harder than a first luxury watch. A first watch can be the start of a collection. A one-watch has to work in the office, on the beach and at a wedding, for the next 20 years.
That's why sports watches with a clean dial win this list. Pure dress watches don't like water or knocks. Pure tool watches look odd with a suit. The picks below sit in the middle.
The safest one-watch answer.
Tudor Black Bay 58, updated for 2026: 39mm by 11.7mm, 200m, black dial with gilt print. Now a METAS Master Chronometer with the MT5400-U and 65h reserve. Dressy enough for a wedding, tough enough for the sea.
The classic one-watch answer.
Rolex Datejust 36 ref. 126200: steel, smooth bezel, Oyster bracelet, cal. 3235 with 70h reserve. Fits almost every wrist, and Rolex service is everywhere. 100m is enough for anything short of real diving.
Boardwalk to boardroom.
Omega Aqua Terra 38: Master Chronometer cal. 8800 with a silicon balance spring and 15,000 gauss resistance, 150m water resistance, teak-pattern dial. Less obvious than a Rolex, just as easy to live with.
The plainest Rolex, in a good way.
Rolex Explorer 36 (124270): black dial with 3-6-9 numerals, no date, cal. 3230 with 70h reserve. Goes with everything and gives nothing away. A 40mm version (224270) exists for bigger wrists.
Spring Drive accuracy in a light titanium case.
Grand Seiko Snowflake SBGA211: 41mm by 12.5mm in high-intensity titanium, 49mm lug to lug. Spring Drive 9R65 with 72h reserve and a power-reserve display on the dial. The textured white dial suits a suit as well as a T-shirt.
The one-watch most people dream about.
Rolex Submariner no-date (124060): 41mm, 300m, ceramic bezel, cal. 3230 with 70h reserve. Hard to get at retail, but as a single watch for life it's hard to argue with.
The one-watch for smaller wrists.
Tudor Black Bay 54: 37mm by 11.2mm, 46mm lug to lug, 200m. MT5400, COSC, 70h reserve, no date. In black or, since 2026, the blue 79000B shown here.
A dress-watch look with 200m.
Nomos Ahoi Neomatik 36: 36.3mm by 9mm, screw-down crown, 200m. Thin in-house automatic DUW 3001. Clean Bauhaus dial that works with a suit, but you can swim with it.
The one-watch under €1,000.
Tissot PRX Powermatic 80: 40mm steel with an integrated bracelet, 80h reserve, 100m. Lots of dial colours, including the mint waffle dial shown.
About €100 and almost impossible to break.
G-Shock GA-2100: 45.4mm wide but only 48.5mm lug to lug and 11.8mm thick, so it wears smaller than it sounds. 200m, alarms, world time. There's also a smaller GA-S2100 at 42.9mm.
If you have to pick one: Tudor Black Bay 58. Want the classic Rolex answer? Datejust 36 or Explorer 36. Want under €1,000? Tissot PRX. Want about €100? G-Shock GA-2100.
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