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Hamilton Khaki Aviation Pilot Day Date Specifications
| Reference | H64615135, H64615585 |
|---|---|
| Case Size | 42mm |
| Lug Width | 20mm |
| Lug-to-Lug | 50mm |
| Thickness | 11.6mm |
| Case Material | stainless steel |
| Crystal | sapphire |
| Water Resistance | 100m |
| Movement | H-40 (automatic) |
| Bezel | fixed smooth |
| Crown | push-pull |
| Case Back | exhibition (see-through) |
| Price Range | $600-$800 |
Compatible Straps for the Hamilton Khaki Aviation Pilot Day Date
The Khaki Aviation Pilot Day Date uses a 20mm Lug Width and is compatible with the following strap types.
| Type | Recommended Brand | Why It Works | Price Range | Link |
|---|---|---|---|---|
| NATO/ZULU | Barton | Classic look, easy to swap, fits 20mm lugs | $15–$80 | |
| leather | Crown & Buckle | Dresses up the watch, fits 20mm lugs | $15–$80 | |
| canvas | Archer | Casual, durable field-watch aesthetic | $15–$80 | |
| rubber/silicone | Hirsch | Water-resistant, comfortable for daily wear | $15–$80 | |
| mesh | Fluco | Adjustable fit, dressy appearance | $15–$80 | |
| oyster bracelet | Barton | Sporty bracelet, solid end links available | $15–$80 |
Replacement Parts for the Hamilton Khaki Aviation Pilot Day Date
| Part | Description | Compatibility Note |
|---|---|---|
| spring bars | Pins that hold the strap to the case | 20mm, 1.5mm diameter recommended |
| case back gasket | Seal that maintains water resistance | Required for 100m WR rating |
| crown with stem | Time-setting knob on case side | push-pull type |
Modding the Hamilton Khaki Aviation Pilot Day Date
The Khaki Aviation Pilot Day Date is a popular platform for modding. Here are the most common modifications.
- strap swap — Upgrade to a premium aftermarket strap or metal bracelet.
Frequently Asked Questions
What lug width is the Hamilton Khaki Aviation Pilot Day Date?
The Hamilton Khaki Aviation Pilot Day Date has a 20mm lug width.
What movement does it use?
The Pilot Day Date uses the Hamilton H-40 automatic movement (based on ETA 2834-2) with an 80-hour power reserve, day display, and date window.
Is the Pilot Day Date a large watch?
At 42mm with a 50mm lug-to-lug, it wears moderately large. The aviation-style dial with large numerals fills the case well and is designed for legibility.