Mechanics 8 min read
How an automatic watch works
Your wrist gives it energy. A spring saves it. A tiny balance sets the rhythm. Follow the journey inside an automatic watch, one pencil drawing at a time.
Union Glashütte
Noramis Chronograph
Ref. 121297
Watch details and strap advice
- Case diameter
- 42 mm
- Case height
- 14.5 mm
- Case material
- Stainless Steel
- Water resistance
- 100 m
- Movement
- Automatic
- Caliber
- UNG-27.S2
- Dial
- Grey
The Union Glashütte Noramis Chronograph takes a 21 mm strap: measure between the lugs and that is the only number you need. We list 6 straps in that width. A chronograph carries a bit of sport: perforated leather, rubber or a sailcloth strap all sit well. With a 42 mm case and 100 m of water resistance, a thicker strap balances the case. Automatic movement. Most straps here come with quick-release spring bars, so the swap takes a minute and no tool.
Straps by lug width (21 mm) 6
All 6 21 mm strapsWidth is a starting point. Check the case and end fittings before choosing.
-
Deployant RubberRubber€49.90 -
Sailcloth WeaveNylon€27.90 -
Suede RallyLeather€34.90 -
Classic EmbossedLeather€24.90 -
Epsom GrainLeather€27.90 -
Heritage SuedeLeather€29.90
Read before you choose
All stories
Tutorial 6 min read
Omega Speedmaster watch strap guide
One black dial, four different directions. Explore suede, nylon, rubber and woven straps, starting with the 20 mm lugs of a specific Moonwatch reference.
Tutorial 3 min read
Choosing a NATO strap or a two-piece strap
Learn how NATO and two-piece straps attach to your watch, affect wrist height, and provide security so you can choose the right style.