The Mantis, the first special edition built on the 02SERIES Gen2 platform, goes on sale for one day only, September 1st, from 3 pm to midnight British time, before being discontinued for good.
At three in the afternoon London time on September 1st, Studio Underd0g opens a buying window that closes exactly nine hours later, at midnight. When the clock strikes twelve, the Mantis stops existing: no restock, no waitlist, no second chance. It is the first special edition the British microbrand has built on the 02SERIES Gen2, the platform it overhauled less than two months ago, and it arrives with the simplest possible pitch: the brightest dial the workshop has ever produced.

The case is the Gen2 02SERIES shell: 37.5mm wide and 11.5mm thick, half a millimeter wider but nearly a full millimeter slimmer than the previous generation, thanks largely to a domed sapphire crystal. Inside runs the Sellita SW200-2 M, a hand-wound version of the brand's standard automatic caliber, with 63 hours of power reserve against the 42 hours the Gen1 movement offered, accuracy rated at -7/+7 seconds a day, and a 28,800 vph beat rate.

What sets this piece apart is the dial, built as a sandwich: a 1mm sapphire disc printed with the minute track, hour markers, and branding, screwed onto a brass base coated in seven layers of X1 GL C3 Super-LumiNova. By day, it shows a light-to-dark green gradient inspired by the coloring of the praying mantis that gives the watch its name; after dark, that same surface merges into a single continuous green glow, with yellow-filled hands kept legible against the light. The strap is a moss-green suede piece from The Strap Tailor, tapered from 18mm to 16mm.

Studio Underd0g is also holding back a small allocation for buyers who show up in person at The D0ghouse, the UK workshop where every one of the brand's watches is assembled.
Pricing is set at £875, roughly US$1,200 at the exchange rate on the date of publication. Shipping is free worldwide via DHL Express, and US orders ship DDP, so the price paid at checkout is the final one.

Latin America and Spain Perspective: buyers in Mexico, Colombia, Argentina, or Chile are billed in British pounds and receive their watch under a DDU arrangement, meaning the £875 does not include import duties, VAT, or customs fees, which fall to the buyer on delivery. Spain isn't spared either despite being in the European Union: Studio Underd0g doesn't charge UK VAT to its European customers, but since the UK sits outside the EU customs union post-Brexit, Spanish import duties and VAT apply all the same at delivery. The nine-hour window translates, approximately and worth double-checking closer to the date given possible time-zone shifts, to 8 am–5 pm in Mexico City and 4 pm–1 am the following day in Madrid.
Studio Underd0g has built much of its recent reputation on the drop and the line that forms before it opens: pieces that sell out in minutes and then trade well above list price on the secondary market. Selling the Mantis over a full nine-hour window, with no lottery or raffle, is a different way of managing that demand: anyone who wants the watch gets an entire afternoon to decide, not a lucky click. It remains, all the same, a watch built to stop existing.




