Side by side

AVI-8 P-51 Mustang Blakeslee Meca-Quartz ChronographvsBorealis Watch Co. Estoril 300 GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

P-51 Mustang Blakeslee Meca-Quartz Chronograph
AVI-8P-51 Mustang Blakeslee Meca-Quartz Chronograph
MSRP $315
Estoril 300 GMT
Borealis Watch Co.Estoril 300 GMT
MSRP $600

At a glance

13 of 29 specs differ
Diameter
P-51 Mustang Blakeslee Meca-Quartz Chronograph43mm
Estoril 300 GMT41.50mm
Power Reserve
P-51 Mustang Blakeslee Meca-Quartz Chronograph40h
Estoril 300 GMT40h
Water Resistance
P-51 Mustang Blakeslee Meca-Quartz Chronograph50m
Estoril 300 GMT300m
MSRP
P-51 Mustang Blakeslee Meca-Quartz Chronograph$315
Estoril 300 GMT$600

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
43mm
41.50mm
Thickness
13mm
13.5mm
Lug-to-Lug
51mm
47mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

3 specs
Crystal
Mineral
Sapphire
Dial Color
COMMAND PILOT
Black
Lume
None
BGW9

Movement

2 specs
Caliber
Miyota 9075
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$315
$600

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

AVI-8 P-51 Mustang Blakeslee Meca-Quartz Chronograph

Owners widely praise the AVI-8 P-51 Mustang Blakeslee Meca-Quartz Chronograph for its vintage-inspired, cockpit instrument aesthetic and the functional meca-quartz chronograph movement. The blue dial is described as stunning with depth, and the aviation-style numerals and brushed steel case contribute to its look. One owner notes the non-sapphire crystal scratches easily, and another criticizes the highly reflective crystal and poor lume. On balance, owners rate the AVI-8 P-51 Mustang Blakeslee Meca-Quartz Chronograph highly for its collectible aviation tribute design and satisfying meca-quartz chronograph function.

Borealis Watch Co. Estoril 300 GMT

Owners widely praise the Borealis Watch Co. Estoril 300 GMT for its excellent value, robust build quality, and crisp dial, with reviewers highlighting its exceptionally bright BGW9 lume and dive-ready ceramic bezel. Some owners appreciate the brushed and polished finishes, though one owner noted a desire for a white-painted second hand. The included NATO strap is considered too thick with a loose weave, and the sapphire bezel insert is seen by some as a minor aesthetic departure from its inspirations. Overall, owners rate the Borealis Watch Co. Estoril 300 GMT highly for its impressive build quality and value.

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