Longines Master Collection 40mm Chronograph Moonphase Automatic Men’s Watch
£3,400
Only available in selected stores
Ring Size Guide
Ring Size | Circumference (mm) | Ring Size | Circumference (mm) |
---|---|---|---|
I | 48.0 | R | 58.9 |
J | 48.7 | S | 60.2 |
K | 50.0 | T | 61.4 |
L | 51.2 | U | 62.7 |
M | 52.5 | V | 64.0 |
N | 53.8 | W | 65.3 |
O | 55.1 | X | 66.6 |
P | 56.3 | Y | 67.8 |
Q | 57.6 | Z | 68.5 |
Please note that this is only a guide and will not take into account the style of ring. For example, if you are choosing a ring with a deep band width, you may need a larger size.
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Longines Master Collection 40mm Chronograph Moonphase Automatic Men’s Watch (M137278)

Designed with a powerful character, this Longines Master Collection 40mm Chronograph Moonphase Automatic Men’s Watch delivers incredible quality and traditional watchmaking. Designed with impressive detail and a powerful movement which can be viewed through the transparent case back, iconic heritage meets vast expertise in this remarkable timepiece.
At A Glance
- Presented on a stainless steel bracelet and finished with a triple safety folding clasp and push-piece opening mechanism
- 40mm case with 30m water resistance
- Silver dial with blued steel hands and applied roman numeral hour markers
- Day and month display at 12 o’clock
- Sapphire crystal glass
- Powered by an automatic movement
Specification
Supplier Code | L26734716 |
Range | Watchmaking Tradition |
Collection | Master Collection |
Strap/Finish | Stainless Steel |
Strap Type | Bracelet |
Watch Movement | Automatic |
Function | Moonphase |
Water Resistancy | 30m |
Case Size (mm) | 40 |
Dial Colour | Silver |
Markers | Roman Numerals |
Clasp Type | Fold Over Clasp |
Glass Type | Sapphire Crystal Glass |
Manufacturer Warranty | 5 Years |
Finish | Polished |