The Bausele OceanMoon IV puts a physical fragment in a sealed chamber built into its crown—a distinctive design feature Bausele calls the Crown Chamber. The exact material depends on the specific model or edition, so “a bit of Australia” describes the watch’s concept, not a guarantee that every OceanMoon IV contains the same Australian material.
What is the Crown Chamber?
Bausele’s crown design includes a small sealed space that holds a physical element. The brand describes using materials such as sand, earth, stone or sea glass across its watches. That explains the OceanMoon IV’s literal connection to place, but Bausele’s broader description does not identify one material found in every IV colorway. Check the exact edition or ask the seller what its chamber contains.
How the OceanMoon IV grew out of a RAAF watch
Bausele traces the design story to its 2021 Royal Australian Air Force centenary work. According to the company, then Chief of the RAAF Mel Hupfeld gave it a fragment of the first F/A-18 assembled in Australia. Bausele used that fragment in the RAAF Aviator, which it describes as available exclusively to serving RAAF members.
The public OceanMoon IV followed from the same design context. Bausele says it shares the RAAF Aviator’s anti-magnetic case and compressor-style twin screw-down crowns, but has different elements in its Crown Chamber. The account establishes the design relationship; it does not specify the chamber contents for each public IV edition. Bausele’s history describes the collaboration and the later OceanMoon generations.
#1 Best Overall
- ICONIC: A true icon from our archives, the rectangular Raquel Fossil watch is updated for the current moment. Slim and versatile, it features a mother-of-pearl watch face with a glitz inner-frame, three-hand date movement and stainless steel bracelet
- CASE & MOVEMENT: 29mm case, 14mm band width, scratch resistant mineral crystal, accurate quartz movement with multifunction analog watch display, imported
- DIAL: One of many among Fossil watches for women, this wristwatch features a rectangular gold stainless steel case with a white mother-of-pearl dial
- WRIST WATCH BAND: Gold durable stainless steel bracelet; links can be removed for a customized fit
- WATER RESISTANT WOMEN'S WATCHES: Up to 50m (165ft): Wearable for short periods of recreational swimming and showering, but not diving or snorkeling; 5 ATM
What Bausele says about the watch
Bausele describes the OceanMoon IV as the fourth iteration of its OceanMoon series and a premium automatic diving watch. In a 2021 article, the brand reported seven dial colors: white, blue, green, silver, black, red/black and light blue. It also reported edition quantities of 100 for each color except the Paxton version, at 50, and the AWF light-blue version, at 40. Those are quantities Bausele reported for the editions, not current inventory figures. The brand’s OceanMoon IV article contains those descriptions.
Founder and designer Christophe Hoppé wrote that the OceanMoon IV “was born in 2021” and called it his best design to date. That is the designer’s personal assessment. In a separate account, Hoppé says an OceanMoon IV strap was made by a Swiss company from recycled plastic collected from the ocean; this is a brand-side description, not an independently verified manufacturing claim. Hoppé’s account of the OceanMoon’s name and design discusses the strap and the collection’s coastal inspiration.
Rank #2
- The date is clearly displayed in a mini window. Just throw a glance at the dial, you will get the calendar easily.
- Couple watches for the sweet lovers of the best gift,Forever Love timepieces,full of blessings.
- Applicable gifts occasions: public relations planning, business gifts, Thanksgiving, wedding, Chinese Valentine's Day, Valentine's Day, birthday, Christmas, Halloween, dating
- Please note: life waterproof, can not be worn to swim, bath, soak, and underwater operations, can withstand drizzle, small splashes, in order to maintain the longer life of the watch, to avoid contact with corrosive substances.
- The precise movement can ensure accuracy per second, and the improved built-in battery can effectively power the watch for a long time.
Technical details depend on the exact edition
Bausele’s descriptions identify an automatic Swiss movement, an anti-magnetic case and compressor-style twin screw-down crowns, but the brand-level information cited here does not provide a complete specification sheet for every IV edition.
For one specific OceanMoon IV white 42 mm listing, retailer Granbergs Watches states a 42 mm 316L steel case, sapphire crystal, 200 m water resistance, and an STP1-11 Swiss automatic movement with a 44-hour power reserve. These are retailer-published specifications for that listed variant, not independently tested results or confirmed specifications for every OceanMoon IV. The retailer cautions that specifications may change. See the retailer’s white 42 mm listing and compare it with the specific watch’s documentation before relying on those details.
Rank #3
- Minimalist Design：The 30mm simple and colourful dial, featuring a date display,Paired with a silver/gold stainless steel bracelet, it looks sleek and classy. The boldly coloured dial of this women's watch to bring attention to your wrist and matches your favorite outfit
- Quality Materials：This pointer ladies watch features an alloy case, together with a adjustable stainless steel band, the bracelet feels smooth and comfortable against your skin,suitable for more wrist sizes
- Precise Time Keeping: Built-in high precision quartz movement provide precise and accurate time keeping
- Daily Water Resistant：In general, this watch can withstand splashes or brief immersion in water. However, it is not recommended for swimming or bathing
- Product Quality Support: We commit to reliable product quality assistance. Your trust means everything to us
How the OceanMoon V differs
The OceanMoon V is the later generation, not a source for filling gaps in the IV’s specifications. Bausele says the V retains an anti-magnetic movement and twin screw-down crowns, while its Crown Chamber holds Australian sand. The company also describes a cleaner no-date dial and a refined case. Those V details should not be assumed to apply to every OceanMoon IV. Bausele’s history provides this generational context.
Quick Recap
Rank #4
- Iconic Women Diver Watch designed in Italy
- Japanese Automatic Movement with Caliber: NH05
- Sapphire Crystal With Anti-Reflective Coating With Black Aluminum Ring
- Unidirectional Rotating Bezel with Luminous Hands And Markers
- Regular Diver Style Clasp: Fold-Over Lock And Two-Button Deployment
What to verify before choosing an OceanMoon IV
- Edition and chamber contents: Ask which colorway or edition is being sold and what physical element is inside its Crown Chamber.
- Fit and construction: Confirm the case diameter and material for that exact reference; the 42 mm figure above applies to one retailer listing.
- Movement and water resistance: Check the model documentation or seller’s listing for the specific watch rather than treating one variant’s figures as universal.
- Condition and terms: Confirm availability, seller status, warranty and return terms with the seller. The brand’s reported edition quantities do not establish present-day stock.
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.
