Watermel0n, Desert Sky, and Go0fy Panda are three dial designs in Studio Underd0g’s 01SERIES Gen3: each is a hand-wound mechanical chronograph with a 38.5 mm case and the brand’s ST-1901B movement, developed with Seagull. The meaningful differences are visual rather than mechanical, so the choice comes down to which dial you prefer and whether the listed dimensions and manual-winding routine suit you.
What the three 01SERIES Gen3 watches share
Studio Underd0g presents the 01SERIES as its take on mid-century racing dials brought into colour. It describes Gen3 as an incremental update to the collection. Those are the manufacturer’s descriptions, not an independent assessment of the designs.
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All three are listed as manual-winding chronographs powered by the ST-1901B, which Studio Underd0g says was developed in partnership with Seagull and is exclusive to the brand. The manufacturer says the movement has a black main plate and silver swan-neck regulator, and that it is regulated in Great Britain to -10/+15 seconds per day. These are published specifications, not results from independent accuracy testing.
| Specification | Watermel0n Gen3 | Desert Sky Gen3 | Go0fy Panda Gen3 |
|---|---|---|---|
| Listed case diameter | 38.5 mm | 38.5 mm | 38.5 mm |
| Case thickness | 12.9 mm | 12.9 mm | 12.9 mm |
| Lug-to-lug | 44.5 mm | 44.5 mm | 44.5 mm |
| Movement | ST-1901B, hand-wound | ST-1901B, hand-wound | ST-1901B, hand-wound |
| Water resistance | 5 ATM | 5 ATM | 5 ATM |
| Price shown on official listing | £600 GBP | £600 GBP | £600 GBP |
These are specifications and prices shown on the official product pages; prices, stock, and purchase terms can change. Check the live listing and checkout for your location. Watermel0n official listing · Desert Sky official listing · Go0fy Panda official listing.
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- BLACK CHRONOGRAPH DIAL WITH DATE WINDOW & SILVER-TONE ROMAN NUMERALS
- Features: CHRONOGRAPH STOPWATCH FEATURE with DATE FUNCTION window
- 44.5 MM CASE SIZE with DURABLE MINERAL CRYSTAL that protects watch from scratches
- BRUSHED/POLISHED STAINLESS STEEL CASE
- BRUSHED/POLISHED STAINLESS STEEL BRACELET WITH FOLD-OVER CLASP + DOUBLE PUSH-BUTTON CLOSURE
How the dial designs differ
Watermel0n
Studio Underd0g calls Watermel0n its original colourful design. Its appeal is the playful, high-contrast look the brand uses to distinguish the watch from more restrained racing chronographs. Choose it for that specific colour-led character, rather than expecting a different movement or case platform from the other two.
Desert Sky
Desert Sky keeps the same Gen3 platform in a different colour treatment. The official listing identifies it as a manual ST-1901B chronograph and gives the fullest specification detail among these pages. It is the option to consider if its particular dial palette is the one you want; the listed technical figures do not establish a performance advantage over the others.
Go0fy Panda
Studio Underd0g explicitly describes Go0fy Panda’s layout as bi-compax. Like its companions, it is listed as a 01SERIES Gen3 chronograph with the same movement and case diameter. Pick it for the bi-compax presentation and dial design, not for a documented mechanical difference.
Studio Underd0g’s product pages do not provide a controlled performance comparison among the three variants. There is no basis in those listings to rank one as more accurate, durable, or better-performing than another.
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The useful fit figures are 38.5 mm across, 44.5 mm lug-to-lug, and 12.9 mm thick. Those dimensions provide a starting point, but how a watch sits depends on wrist shape, strap choice, and personal preference; no wear test is available here. The case is specified as three-part 316L stainless steel.
The product specifications list a 20 mm band and quick-release spring bars. That makes a 20 mm replacement strap a plausible accessory option, provided the strap itself is compatible with quick-release spring bars. Studio Underd0g also offers model-specific strap choices on its product selector.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Manual winding and chronograph use
Unlike an automatic watch, the ST-1901B needs to be wound by hand. The listing specifies clockwise winding. In ordinary use, wind the crown as directed by the maker and avoid forcing it when resistance increases; follow the watch’s supplied instructions for the exact procedure. The chronograph adds a start/stop/reset timing function, but the product pages do not document special operating or servicing instructions beyond the listed functions.
Studio Underd0g lists a 50-hour power reserve with the chronograph off and 45 hours with it running. The listed beat rate is 21,600 beats per hour, and the functions are hours, minutes, seconds, chronograph, and tachymeter. The stated accuracy is -10/+15 seconds per day; that is the manufacturer’s specification, not a measurement of any individual watch.
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Water resistance and purchase terms
All three are listed at 5 ATM water resistance. This rating is not, by itself, a guarantee that a particular water activity is suitable. Check Studio Underd0g’s current care and water-resistance guidance before exposing the watch to water.
At the time reflected on the official listings, each displayed £600 GBP. That is a UK-currency listing, not a guaranteed price in every country or on a later date. The brand states that EU orders are delivered DDU and may incur local duties and taxes; US orders are shipped DDP, with sales tax potentially applied where required; other international orders are DDU and may incur destination charges. Confirm current availability, taxes, shipping, and total checkout cost for your address before buying. The manufacturer also says its watches are assembled in-house in Great Britain, with each watch handled from start to finish by one pair of hands.
Which one should you choose?
- Choose Watermel0n if you want the design Studio Underd0g identifies as the collection’s original colourful watch.
- Choose Desert Sky if its specific colourway is your preference and you want to consult the listing with the detailed specification set.
- Choose Go0fy Panda if you prefer its bi-compax dial layout.
- Before choosing any of them, consider whether a hand-wound chronograph and the listed 38.5 mm by 44.5 mm footprint fit your routine and wrist.
Official references: Studio Underd0g 01SERIES collection, Watermel0n, Desert Sky, and Go0fy Panda.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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