Specht & SöhneSP0018
Homage to the Audemars Piguet Royal Oak
about$245
Regular price at the brand's own website, checked 31 Oct 2026. Marketplace prices change often.
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The Specht & Söhne SP0018 is a homage to the Audemars Piguet Royal Oak, with a 40 mm case, 1 mm smaller. It uses an automatic movement and is water resistant to 50 m. It costs about $245 at the official store.
Side by side with the original
Compared with reference 15510ST.OO.1320ST.06. Values marked ≈ are estimates, such as a reviewer's measurement.
| Spec | SP0018 | Royal Oak (15510ST.OO.1320ST.06) | Difference |
|---|---|---|---|
| Case diameter | 40 mm | 41 mm | −1 mm |
| Lug-to-lug | ≈ 49.9 mm | Not published | Can't compare |
| Thickness | 11 mm | 10.5 mm | +0.5 mm |
| Lug width | 25 mm | Not published | Can't compare |
| Water resistance | 50 m | 50 m | |
| Movement | Automatic, 8215 | Automatic, 4302 | |
| Power reserve | 42 h | 70 h | |
| Crystal | Sapphire | Sapphire, glareproofed | |
| Bezel | Not published | Not published | |
| Case material | 316L stainless steel | Stainless steel | |
| Lume | Dial and hands | Luminescent coating on hands (type not published) | |
| Bracelet | 316L stainless steel bracelet | Stainless steel bracelet | |
| Weight | Not published | Not published |
- ≈ SP0018, Lug-to-lug: median of 2 agreeing independent measurements (49.5–50.2 mm); the maker does not publish it.
The original
Audemars Piguet
Royal Oak
Reference 15510ST.OO.1320ST.06, blue "bleu nuit nuage 50" grande tapisserie dial
- Case
- 41 mm
- Lug-to-lug
- Not published
- Thickness
- 10.5 mm
- Water resistance
- 50 m
- Movement
- Automatic, 4302
- List price
- $31,900
Why it scores as it does
Proportions and movement are computed from specs. Design details and functions are judged from the brand's official images. How we score
Lug-to-lug is neither published nor measured for one of the two watches, so there is not enough data to score.
Proportions— / 30
- Case diameter8 / 121 mm apart
- Lug-to-lug0 / 8Not published, left out
- Thickness5 / 60.5 mm apart
- Lug width0 / 4Not published, left out
Design signatures— / 40
- Octagonal bezel with eight screws6 / 12Octagonal bezel in the official image, but engraved minute markers and numerals in place of the eight screws.
- Grid-patterned (Tapisserie) dial4.5 / 9Vertically ribbed dial with a white minute ring; no grid pattern.
- Bracelet integrated into the case9 / 9Steel bracelet that continues the case lines, with stacked links.
- Tonneau-shaped case3 / 6Octagonal case with a straight-sided outline; it does not show the original's tonneau curve.
- Screw-locked crown4 / 4Brand lists a screwed crown; the official image shows a crown at 3 in the case line.
Functions and materials— / 20
- Complications8 / 8Automatic with a date window at 3, as on the original.
- Bezel action2 / 4The brand does not describe the bezel. The original's bezel is fixed; the engraved bezel here is not described as rotating.
- Case and bezel materials4 / 4316L steel case and bracelet, as on the original's steel case and bracelet.
- Crystal shape and date window4 / 4Sapphire crystal and a plain date window, as on the original's sapphire crystal.
Movement type— / 10
- Movement type10 / 10Same movement type.
What reviewers and owners say
Reviewers
From 3 reviews we read or watched.
The three reviewers like the dial, with its vertical stripes, applied lumed indices and a contrasting white minute ring, and the octagonal case with brushed and polished surfaces. All describe a design that follows the Royal Oak without copying it, and two note the engraved bezel markers.
The criticisms are shared too. Two say the polygon-shaped screw-down crown is hard to grip and start. Two measured a 40 mm case about 11 to 12 mm thick with a lug-to-lug near 50 mm, and one says it wears larger than its size on the wrist.
Good
- Distinct ribbed dial with a contrasting minute ring
- Steel bracelet that two reviewers call nice-looking
- Sapphire crystal and screw-down case back
- Thin at about 11 mm
Less good
- Polygon-shaped crown is hard to grip
- Wears larger than 40 mm because of the wide bracelet
Known quality issues
Each reported by at least two independent sources.
- Two reviewers report that the screw-down crown has little grip and is hard to unscrew and screw down.
Compare
Sources
Checked 31 Oct 2026. Every figure on this page comes from one of these pages.