Studio Underd0g introduces its striking new 02SERIES Mantis, a special edition that takes the field watch concept into genuinely nocturnal and tongue-in-cheek territory. Following the consolidation of the collection’s second generation, the British brand led by Edward Farmer presents a model where phosphorescence moves from a secondary feature to the true technical and visual centerpiece.
Inspired by the camouflage capabilities of the praying mantis—an insect engineered to remain unseen while the watch seeks the exact opposite—the Mantis retains the compact dimensions and refined architecture of the Gen2 while adding a massive load of high-performance luminescent material.

Multi-Layer Sapphire Dial and Super-LumiNova X1 C3
The uniqueness of the Mantis’ dial lies in its hand-assembled two-tier construction. The main brass base dial receives seven consecutive coats of custom-formulated Super-LumiNova X1 GL C3, delivering an intense green phosphorescent glow.

Positioned above this luminous base is a 1mm thick top disc made of sapphire crystal, secured via mechanical pins. This sapphire disc carries the minute track, brand typography, and Arabic numerals. In low-light conditions, the powerful emission from the base projects the silhouette of the printed elements in sharp contrast, creating a 3D depth effect reminiscent of night-vision displays.


Compact 37.5mm Case and Sellita SW200-2 M Caliber
True to the well-proportioned profile defining the Gen2, the 316L stainless steel case measures 37.5mm in diameter, 11.5mm in thickness, and features a lug-to-lug length of 46mm. The two-part architecture comes with brushed finishes, an 18mm lug width, and a water resistance rating of 100 meters (10 ATM).

At its mechanical core beats the hand-wound Swiss movement Sellita SW200-2 M Power+. This caliber upgrade boosts the power reserve to 63 hours (up from the standard 42 hours), operating at a frequency of 28,800 vph (4 Hz) with hacking seconds and a regulated accuracy of -7/+7 seconds per day. The solid caseback features an engraving of a jellyfish as a visual nod to the watch’s electric glow.

Assembled in Great Britain and Release Window
Every 02SERIES Mantis unit is individually assembled in Great Britain by a dedicated watchmaker, whose initials are recorded on the official paperwork included with the watch.
The 02SERIES Mantis is not limited by a fixed piece count, but rather by a purchase window. It will be available exclusively through Studio Underd0g’s official webstore for a 9-hour period on September 1st (3pm to 12am BST / 16:00 to 01:00 CEST).
On the commercial front, shipments to the European Union are processed under DDU (Delivery Duty Unpaid) terms. The brand has deducted UK VAT (20%) from the base price, meaning EU buyers will be responsible for local VAT and customs clearance fees upon delivery via DHL Express (unlike US orders, which ship DDP with duties paid upfront).
Studio Underd0g 02SERIES Mantis Technical Specifications
| Specification | Detail |
|---|---|
| Case | 316L stainless steel. 2-part modular construction. |
| Dimensions | 37.5mm diameter; 11.5mm thickness; 46mm lug-to-lug. |
| Crystal / Dial | Multi-layer dial: 1mm top sapphire disc, brass base with 7 coats of Super-LumiNova X1 C3. |
| Caliber | Sellita SW200-2 M Power+. Manual winding. Regulated to -7/+7 s/d. Hacking seconds. |
| Frequency | 28,800 vph (4 Hz). |
| Functions | Central hours, minutes, and seconds. |
| Power Reserve | 63 hours. |
| Water Resistance | 100 meters / 10 ATM. |
| Strap | Suede strap by The Strap Tailor (18mm tapering to 16mm at buckle) with quick-release spring bars. |
| Assembly | Individually hand-assembled in Great Britain. |
| Price & Shipping | Approx. €900 / $1,000 (Excl. VAT/duties for EU – DDU shipping) / US orders shipped DDP. |
| Availability | Exclusive 9-hour sales window on September 1st via underd0g.com. |


