# AndoAndoAndo A-2 Auto Prototype LE-10 Review by A.I. WatchMetrics

## Watch Summary
The AndoAndoAndo A-2 Auto Prototype LE-10 is an exquisite ultra-compact field watch limited to just 10 handmade prototypes by Japanese microbrand artisan Ando, boasting a 30mm 316L stainless steel case, double-curved sapphire crystal, Seiko NH35A automatic movement with 41-hour power reserve and hacking seconds, 100m water resistance via screw-down crown, and a striking black sunburst dial with applied indices and C3 lume—perfect for small-wristed collectors and enthusiasts craving a unique, versatile tool watch blending dressy elegance with rugged capability.

## Overall Watch Rating: 7.0/10.0

**Material Metric (9.5/10.0)** - Premium 316L stainless steel construction, double-curved sapphire crystal, and refined brushed/polished finishing deliver luxury-level durability comparable to Tudor Black Bay cases.
**Dials & Design Metric (9.0/10.0)** - The black sunburst dial with applied markers, precise proportions, and prototype uniqueness offers exceptional legibility and artistry on par with Grand Seiko craftsmanship in a tiny package.
**Movement Metric (7.8/10.0)** - The Seiko NH35A automatic provides reliable in-house-like performance with 24 jewels, 21,600 bph, and compact integration, matching mid-tier Swiss automatics like ETA 2824.
**Versatility Metric (7.5/10.0)** - At 30mm with 100m WR and leather strap, it excels across casual, formal, field, and adventure scenarios for small wrists, akin to a miniaturized Nomos Club.
**Brand Metric (6.8/10.0)** - As a low-production enthusiast microbrand, AndoAndoAndo punches above its weight in quality and innovation, similar to early Christopher Ward offerings.
**Functions Metric (6.2/10.0)** - Core timekeeping with date window, hacking, and strong lume handles daily needs solidly, on par with reliable Seiko 5 Sports models.
**Rarity Metric (5.5/10.0)** - Limited to 10 prototypes, it outshines common production runs but trails ultra-exclusive pieces like F.P. Journe limited editions in scarcity.
**Complications Metric (5.3/10.0)** - The simple date complication adds utility without excess, comparable to classic Omega Seamaster date models.
**History & Innovation Metric (5.2/10.0)** - Niche innovation in sub-30mm high-spec automatics builds a cult following, echoing early microbrand pioneers like Baltic.

## Total Performance Score (TPS): 4.2

## WM Collector Grade: C+

## Performance Insights: Excels in materials, design, and movement reliability with extreme prototype rarity boosting collector value, though basic functions temper overall bang-for-buck versus an implied price of $18,500.

## TPS Interpretation: Modest Value: The watch delivers microbrand excellence and one-of-10 scarcity well-suited to niche collectors at its accessible price.

## Watch Data
[https://live.staticflickr.com/65535/53665328547_0b3b2b1d5e_c.jpg] - [Front view showcasing black sunburst dial and 30mm case]; [https://live.staticflickr.com/65535/53665323492_5f3e5b4d2a_c.jpg] - [Display caseback revealing NH35A movement]; [https://live.staticflickr.com/65535/53665328547_0b3b2b1d5e_c.jpg] - [C3 lume glowing on hands and indices]; [A-2 Prototype LE-10] - [A-2 Auto Prototype LE-10]; [AndoAndoAndo] - [AndoAndoAndo]; [A-2 Auto Prototype LE-10] - [A-2 Auto Prototype LE-10]; [Japan] - [Japan]; [https://andoandoando.com/] - [https://andoandoando.com/]; [N/A] - [N/A]; [Automatic] - [Automatic]; [Seiko NH35A] - [Seiko NH35A]; [LE/10] - [LE/10]; [Handmade ultra-compact 30mm field watch prototype with NH35A automatic, 100m WR, sapphire crystal, date at 3, C3 lume, ideal for small wrists and collectors] - [Handmade ultra-compact 30mm field watch prototype with NH35A automatic, 100m WR, sapphire crystal, date at 3, C3 lume, ideal for small wrists and collectors]; [30.0] - [30.0]; [38.5] - [38.5]; [11.4] - [11.4]; [20] - [20]; [100] - [100]; [41] - [41]; [21600] - [21600]; [C3] - [C3]; [24] - [24]; [316L Stainless Steel] - [316L Stainless Steel]; [Sapphire double curved] - [Sapphire double curved]; [Fixed] - [Fixed]; [Display sapphire] - [Display sapphire]; [Screw-down] - [Screw-down]; [Horween leather] - [Horween leather]; [Round] - [Round]; [Black sunburst] - [Black sunburst]; [Central] - [Central]; [Yes] - [Yes]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [Window] - [Window]; [No] - [No]; [Yes] - [Yes]; [Yes] - [Yes]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [Yes] - [Yes]; [Yes] - [Yes]; [No] - [No]; [No] - [No]; [Yes] - [Yes]; [Yes] - [Yes]; [Yes] - [Yes]; [Yes] - [Yes]; [No] - [No]; [No] - [No]; [Yes] - [Yes]; [No] - [No]; [4.2] - [4.2]; [C+] - [C+]; [18500] - [18500];

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**