Grand Seiko Heritage 'Dusk Mount Iwate' 40mm Automatic Men’s Watch
£6,400
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Grand Seiko Heritage 'Dusk Mount Iwate' 40mm Automatic Men’s Watch | £6,400
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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Grand Seiko Heritage 'Dusk Mount Iwate' 40mm Automatic Men’s Watch (M137465)

Taking inspiration from Mount Iwate, seen from the Shizukuishi Watch Studio where Grand Seiko mechanical timepieces are made. Echoing a historical style, this Grand Seiko Heritage ‘Dusk Mount Iwate’ 40mm Automatic Men’s Watch showcases the very latest movements, manufacturing techniques and craftmanship. Powered by the in-house built mechanical Calibre 9S85, delivering a robust and reliable timepiece with incredible design details.
At A Glance
- Presented on a stainless steel bracelet finished with a foldover clasp
- 40mm case with 100m water resistance
- Black dial with stainless steel hands and hour markers
- Date window displayed at 3 o’clock
- Sapphire crystal glass
- Powered by the in-house built mechanical Calibre 9S85, with a power reserve of 55 hours, an accuracy rate of +5 to -3 seconds per day
Specification
Supplier Code | SBGH301 |
Range | Heritage |
Strap/Finish | Stainless Steel |
Strap Type | Bracelet |
Watch Movement | Automatic |
Function | Date |
Water Resistancy | 100m |
Case Size (mm) | 40 |
Dial Colour | Black |
Markers | Batons |
Clasp Type | Fold Over Clasp |
Glass Type | Sapphire Crystal Glass |
Manufacturer Warranty | 5 Years |
Finish | Polished,Matt |