Northport Automatic Dive Watch
Ref. ISL-360
- Case diameter
- 40.5 mm
- Manufacturer spec
- Lug-to-lug
- 47 mm
- Manufacturer spec
- Thickness
- 12.5 mm
- Manufacturer spec
- Lug width
- 20 mm
- Manufacturer spec
Retail price $449 (US, Oct 2026)
How the Northport Automatic Dive Watch wears
Its lugs add 6.5 mm to the 40.5 mm case, close to the 7.1 mm typical across the almanac, so its diameter is a fair guide to how it wears.
On our fit model it sits best on wrists from 6.5" to 7.75" (16.5–19.7 cm); below 6.5" the lugs start to reach the edge of the wrist.
At 12.5 mm thick it is slimmer than 65% of the 79 other dive watches we've measured, so it slides under a cuff more easily than most.
Its 20 mm lug width is one of the most common strap sizes; 104 other watches here share it, so aftermarket straps are easy to find.
Will the Northport Automatic Dive Watch fit your wrist?
With a 47 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.
| Wrist | Flat width (est.) | Fit |
|---|---|---|
| 6" | 47.2 mm | Lugs overhang |
| 6.5" | 51.2 mm | Ideal fit |
| 7" | 55.1 mm | Ideal fit |
| 7.5" | 59.1 mm | Ideal fit |
| 8" | 63 mm | Wears small |
Specifications
- Reference
- ISL-360
- Collection
- Northport
- Status
- In production
- Case material
- stainless steel
- Crystal
- sapphire
- Water resistance
- 200 m
- Bezel
- unidirectional 120-click coin-edge, lumed sapphire insert
- Dial
- white ripple
- Strap / bracelet
- solid-link steel bracelet, 20-16mm taper, ratcheting clasp
- Style
- Dive
Movement
- Caliber
- Miyota Miyota 9015
- Type
- automatic
- Power reserve
- 42 hours
- Frequency
- 28,800 vph (4 Hz)
- Jewels
- 24
- Accuracy
- -10/+30 s/day
Takes 20 mm straps. See other 20 mm watches and straps.
Watches that wear the same size
Other watches within 1.5 mm of its lug-to-lug.
- BalticAquascaphe Classic
- Case
- 39 mm
- Lug-to-lug
- 47 mm
- Thick
- 13 mm
- BalticAquascaphe GMT MK II
- Case
- 39.5 mm
- Lug-to-lug
- 47 mm
- Thick
- 13.8 mm
- BalticAquascaphe MK2 39.5mm
- Case
- 39.5 mm
- Lug-to-lug
- 47 mm
- Thick
- 12.9 mm
- BalticBicompax 002
- Case
- 38 mm
- Lug-to-lug
- 47 mm
- Thick
- 13 mm
- BalticHMS 002
- Case
- 38 mm
- Lug-to-lug
- 47 mm
- Thick
- 13 mm
- BreitlingNavitimer B01 Chronograph 41AB0139211B1A1
- Case
- 41 mm
- Lug-to-lug
- 47 mm
- Thick
- 13.6 mm
Same 20 mm lug width
All 20 mm watchesThese take the same straps as the Northport Automatic Dive Watch.
- BalticAquascaphe MK2 37mm
- Case
- 37 mm
- Lug-to-lug
- 45 mm
- Thick
- 12.9 mm
- BalticHermetique Tourer
- Case
- 37 mm
- Lug-to-lug
- 46 mm
- Thick
- 10.8 mm
- BalticMR Classic“MR01 successor”
- Case
- 36 mm
- Lug-to-lug
- 44 mm
- Thick
- 9.9 mm
- BrewMetric Chronograph Retro DialMETRIC-BLK
- Case
- 36 mm
- Lug-to-lug
- 41.5 mm
- Thick
- 10.8 mm
- BulovaLunar Pilot Chronograph 43.5mm98K112
- Case
- 43.5 mm
- Lug-to-lug
- —
- Thick
- —
- CertinaDS PH200M Powermatic 80C036.407.18.040.00
- Case
- 42.8 mm
- Lug-to-lug
- 52.1 mm
- Thick
- 11.9 mm