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.
SevenFriday
M1B/01 Explorer Urbain
Ref. M1B/01
Watch details and strap advice
- Case height
- 15.8 mm
- Case material
- Stainless Steel
- Water resistance
- 30 m
- Movement
- Automatic
- Caliber
- Miyota 8215
- Dial
- Blue
The SevenFriday M1B/01 Explorer Urbain takes a 28 mm strap: measure between the lugs and that is the only number you need. With 30 m of water resistance, a strap of medium thickness keeps the balance. Automatic movement. Most straps here come with quick-release spring bars, so the swap takes a minute and no tool.
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.