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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.
Longines · Conquest
Conquest 29.5 Automatic Double Row
Ref. L31800576
Watch details and strap advice
- Case diameter
- 29.5 mm
- Case shape
- Round
- Water resistance
- 50 m
- Caliber
- L595
- Dial
- Black
The Longines Conquest 29.5 Automatic Double Row Diamond takes a 15 mm strap: measure between the lugs and that is the only number you need. A dress watch by proportion: a slim leather strap, plain or lightly stitched, keeps the line clean. With a 29.5 mm case and 50 m of water resistance, a strap of medium thickness keeps the balance. Most straps here come with quick-release spring bars, so the swap takes a minute and no tool.
Read before you choose
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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.
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How to change a watch strap
Identify the attachment, release the correct part and check that both tips are seated. Illustrated instructions for quick-release bars, conventional bars and nylon pass-through straps.