Side by side

Serica Ref. 5303 Diving ChronometervsAVI-8 P-51 Mustang Blakeslee Meca-Quartz Chronograph

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
P-51 Mustang Blakeslee Meca-Quartz Chronograph
AVI-8P-51 Mustang Blakeslee Meca-Quartz Chronograph
MSRP $315

At a glance

16 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
P-51 Mustang Blakeslee Meca-Quartz Chronograph43mm
Power Reserve
Ref. 5303 Diving Chronometer42h
P-51 Mustang Blakeslee Meca-Quartz Chronograph40h
Water Resistance
Ref. 5303 Diving Chronometer300m
P-51 Mustang Blakeslee Meca-Quartz Chronograph50m
MSRP
Ref. 5303 Diving Chronometer$1,768
P-51 Mustang Blakeslee Meca-Quartz Chronograph$315

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
39mm
43mm
Thickness
12.2mm
13mm
Lug-to-Lug
46.5mm
51mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

4 specs
Crystal
Sapphire
Mineral
AR Coating
Yes
Inner
Dial Color
Enamel Black
COMMAND PILOT
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
M100 COSC
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$315

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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.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

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.

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