Essentials Quartz
Ref. SUR525
- Case diameter
- 40.2 mm
- Manufacturer spec
- Lug-to-lug
- 47 mm
- Manufacturer spec
- Thickness
- 8.3 mm
- Manufacturer spec
- Lug width
- 20 mm
- Manufacturer spec
Retail price $265 (US, Oct 2026)
How the Essentials Quartz wears
Its lugs add 6.8 mm to the 40.2 mm case, close to the 7 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 8.3 mm thick it is slimmer than 94% of the 142 other everyday 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; 186 other watches here share it, so aftermarket straps are easy to find.
Will the Essentials Quartz 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
- SUR525
- Collection
- Essentials
- Status
- In production
- Case material
- stainless steel
- Crystal
- sapphire
- Water resistance
- 100 m
- Bezel
- fixed
- Dial
- blue
- Strap / bracelet
- stainless steel bracelet, tri-fold push-button clasp
- Style
- Everyday, Dress
Movement
- Caliber
- Seiko 6N52
- Type
- quartz
Takes 20 mm straps. See other 20 mm watches and straps.
More Essentials references
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 Dual-Crown Black
- Case
- 39 mm
- Lug-to-lug
- 47 mm
- Thick
- 11.9 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
- BalticAquascaphe Titanium Black
- Case
- 41 mm
- Lug-to-lug
- 47 mm
- Thick
- 13.3 mm
- BalticBicompax 002
- Case
- 38 mm
- Lug-to-lug
- 47 mm
- Thick
- 13 mm
Same 20 mm lug width
All 20 mm watchesThese take the same straps as the Essentials Quartz.
- AutodromoMonoposto Series Two (Moss Green)BP-002-MG
- Case
- 43 mm
- Lug-to-lug
- 46 mm
- Thick
- 11 mm
- BalticAquascaphe MK2 37mm
- Case
- 37 mm
- Lug-to-lug
- 45 mm
- Thick
- 12.9 mm
- BalticHMS 002
- Case
- 38 mm
- Lug-to-lug
- 47 mm
- Thick
- 13 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
- BenrusType 1 Mil SpecT1MS-SS-B-395-01
- Case
- 39.5 mm
- Lug-to-lug
- 47.7 mm
- Thick
- 14.4 mm