The Orient Bambino Version 5 covered here is reference RA-AC0005S10A: a 40.5 mm automatic dress watch with a stainless-steel bracelet, white dial, and approximately 40-hour stated power reserve. Orient Watch USA lists a domed mineral crystal and 30 m water resistance. Its US product page currently shows the watch as out of stock, so check the exact reference and your region before buying.
Which watch is the Orient Bambino Version 5?
Orient Watch USA identifies its Version 5 listing as RA-AC0005S10A. The page describes a white dial with glossy Arabic numerals and curved, leaf-shaped hands, paired with a stainless-steel case and bracelet. Orient’s product copy says Version 5 “moves back to the Bambino roots” while drawing inspiration from earlier models. Orient Watch USA’s product listing is the reference to use when checking this particular watch.
“Bambino” covers multiple references, not one fixed specification set. In particular, do not confuse this 40.5 mm Version 5 listing with the separate Bambino 38 mm AC0M family.
Orient Bambino Version 5 specifications
| Specification | RA-AC0005S10A |
|---|---|
| Case diameter | 40.5 mm (Orient Watch USA listing, accessed 2026) |
| Lug-to-lug | 47 mm (Orient Watch USA listing, accessed 2026) |
| Thickness | 12 mm (Orient Watch USA listing, accessed 2026) |
| Lug width | 21 mm (Orient Watch USA listing, accessed 2026) |
| Case and bracelet | Stainless steel |
| Crystal | Domed mineral crystal |
| Movement | F6724 automatic; listed as hand-winding and hacking |
| Stated power reserve | Approximately 40 hours (Orient Watch USA listing, accessed 2026) |
| Functions and features | Date, exhibition caseback, push/pull crown, butterfly clasp |
| Water resistance | 30 m (Orient Watch USA listing, accessed 2026) |
These are manufacturer-published specifications, not independent measurements or test results. Orient’s page gives a 30 m rating; it does not establish that the watch is suitable for swimming or other water activities.
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How does the 40.5 mm Version 5 compare with the Bambino 38 mm?
The official UK listing for reference RA-AC0M02B in the Bambino 38 mm AC0M family gives a 38.4 mm case, 44 mm lug-to-lug length, 12.5 mm thickness, and 20 mm lug width. It also lists an F6724 movement, domed mineral glass, and 30 m water resistance. These are specifications for that AC0M reference, not for Version 5.
| Measurement | Version 5 RA-AC0005S10A | Bambino 38 mm RA-AC0M02B |
|---|---|---|
| Case diameter | 40.5 mm (Orient Watch USA) | 38.4 mm (Orient Watches UK) |
| Lug-to-lug | 47 mm (Orient Watch USA) | 44 mm (Orient Watches UK) |
| Thickness | 12 mm (Orient Watch USA) | 12.5 mm (Orient Watches UK) |
| Lug width | 21 mm (Orient Watch USA) | 20 mm (Orient Watches UK) |
The listed lug-to-lug length and lug width can help you assess fit and accessory compatibility more usefully than the Bambino name alone. For the 38 mm family’s figures, see Orient Watches UK’s RA-AC0M02B listing.
Rank #2
- Orient F6724 Automatic, Hand-Winding, Hacking Movement
- 40. 5 mm Case Diameter
- 21 mm Lug Width
- Domed mineral Crystal
- 30 Meter Water Resistance
Is the Orient Bambino Version 5 worth buying?
It may suit someone looking for a traditionally styled automatic watch with a steel bracelet, a date display, and a dress-watch dial design. The listed 40.5 mm case and 47 mm lug-to-lug length are the key fit figures to compare against a watch you already find comfortable. If you prefer a smaller footprint, compare the exact 38 mm AC0M reference rather than assuming all Bambinos share Version 5’s dimensions.
The product page documents the movement features, materials, and dimensions, but does not establish real-world accuracy, durability, or independent performance. Treat the approximately 40-hour power reserve as Orient’s stated specification rather than a verified test result.
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Quick Recap
Rank #4
- Orient Caliber F6724 Automatic, Hand-winding, Hacking (Seconds-hand Halt) Movement
- Domed Mineral Crystal
- 40 Hour Power Reserive
- Water Resistance: 30m
- Case Diameter: 38.4mm, Case Thickness: 12.5mm
Rank #3
- Powered by the Orient F6724 In-House Japanese Automatic / Hand Winding Movement
- 30 Meter Water Resistance (100 feet): In general, suitable for incidental contact such as hand washing
- Case Diameter 40.5 mm (without crown)
- Domed Mineral Crystal
What to check before buying
- Confirm the reference: make sure the listing says RA-AC0005S10A if you want the Version 5 specifications above.
- Check availability where you live: the cited US product page currently marks the model out of stock. Availability at other retailers or in other regions has not been established here.
- Compare fit measurements: assess the 40.5 mm diameter and 47 mm lug-to-lug length against your wrist and preferred watches.
- Verify strap compatibility: the listed lug width is 21 mm, but width alone does not confirm a strap’s end shape, thickness, clasp, or overall fit. Confirm that a replacement strap is suitable for your exact watch.
- Review the water-resistance rating against your use: the manufacturer lists 30 m; do not infer suitability for a particular activity from that number alone.
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.
