ST. PETERSBURG
THEOREMA | GM-121-13 | BLUE
Shipped directly from the manufacturer in Munich within 24 hours after purchase, except on weekends. We ship worldwide. Priority Expedited with signature upon delivery takes 2-6 business days.
Variants
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About St. Petersburg
A distinctive choice for watch lovers interested in case geometry, movement regulation, and engraved details complemented by visible mechanical components. The tonneau-shaped introduces a curved rectangular silhouette. It has a decorative element that watch enthusiasts can appreciate through its movement architecture.| Reference | GM-121-13 |
| Case | High-grade stainless steel (316 L) |
| IP black plating | With 5 micron |
| Dimension | Size approx. 40x45 mm without crown |
| Shock protection | Inca-bloc type |
| Movement | Automatic with 20 jewels |
| VPH |
21600 |
| Dial |
Skeletonized see-through |
| Hands |
Skeleton two colored |
| Lens | Sapphire crystal |
| Crown | Threaded easy-use |
| Clasp | Standard buckle |
| Band | Genuine leather |
| Warranty | 2-year warranty |
| Water-Resistant | 5 ATM |
| Brand | Theorema, Germany |
| Packaging | Original Theorema box |
| Included | Manual, warranty & Tufina future gift card |
Mechanism
Each Theorema timepiece brings together a complex network of mechanical components, design decisions, and technical expertise. The result is a watch that combines the intricacy of mechanical engineering with the visual character of a carefully designed instrument. Pionier’s approach is defined by modern forms, distinctive aesthetics, and demanding standards throughout the design and production process. Drawing on established European engineering traditions, the brand applies this technical heritage to its own interpretations of contemporary watch design.
