M34 F8 Skeleton Hand Winding
RE-AZ0104L
| Movement | Mechanical |
|---|---|
| Calibre Code | F8B61 |
| Accuracy | +15 seconds to -5 seconds per day * |
| Power Reserve (Mechanical) | Over 70 hours |
| Power Reserve (Quartz) | |
| Automatic | |
| Hand-Winding | Yes |
| Dial Colour | Blue gradation |
| Case Material (Bezel) | Stainless steel (SUS316L) |
| Case Material (Body) | Stainless steel (SUS316L) |
| Case Material (Back) | Stainless steel (SUS316L) |
| Case Size (Width) | 39.0 mm |
| Case Size (Height) | 46.5 mm |
| Case Size (Thickness) | 10.8 mm |
| Case Back Design | See-through case back |
| Glass Material (Front) | Dual curve sapphire crystal (SAR coating) |
| Glass Material (Back) | Flat sapphire crystal |
| Strap Material | Stainless steel (SUS316L) |
| Strap Colour | |
| Strap Width | 20 mm |
| Buckle | Trifold deployant buckle with push button |
| Wrist Size | 140 mm~200 mm |
| Additional Strap | |
| Additional Strap material | |
| Additional Strap buckle type | |
| Water Resistance | 5 bar (50 m) |
| Magnetic Resistance | JIS Type 1 (Magnetic Resistance 4800 A/m or higher) |
| Weight | 142 g |
| Jewels | 22 |
| Date Indicator | |
| Day Indicator | |
| Power Reserve Indicator | Yes |
| GMT | |
| Retrograde | |
| World Time | |
| Rotating Bezel | |
| Inside Ring | |
| Luminous Light | |
| Screw Case Back | Yes |
| Easy Exchange Strap | |
| Other Details | Grey colour plated bezel |
| Limited Edition | 100 limited editions |
| Pair Model | |
| Country of Origin | Japan |
| Warranty | 2 Year |
| Launch | Jul, 2024 |
- *The indication difference of the watch measured over a 24-hour period represents the degree of advance or delay per day.
Indicated with (+) if the watch is going forward,and (-) if it is going backward.
Starlight illuminating in deep space. Combination of refined quality with a relaxed feel.

The in-house hand-winding Calibre F8B61 delivers excellent practicality, combining high accuracy of +15 to -5 seconds per day with a power reserve of more than 70 hours. It is equipped with a silicon escape wheel produced using advanced MEMS technology, contributing to both performance and efficiency. *The silicon escape wheel incorporates Epson’s proprietary patented technology.
The new blue gradation outer ring symbolizes starlight shining in darkness

The grey‑toned skeleton movement captures the abyss of the cosmos. Encircling it, a new blue‑gradient outer dial ring and a grey‑plated bezel evoke the shimmering light of distant stars, intensifying the sense of vastness and mystery found in deep space.