IWC Schaffhausen Aquatimer ChronographvsOmega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures

Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

IWC Schaffhausen Aquatimer Chronograph at true scale

Aquatimer Chronograph

Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm at true scale

Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm

Diameter

44mm

44mm

Lug-to-Lug

n/a

52.8mm

Thickness

17mm

lowest

17.2mm

Water Resistance

300m

300m

Power Reserve

44h

60h

highest

MSRP

$7,900

lowest

$27,300

Movement

79320

Omega 9900

Case

4 specs
Thickness
17mm
17.2mm
Lug-to-Lug
n/a
52.8mm
Lug Width
22mm
21mm
Material
Stainless Steel
18kt Sedna Gold

Crystal & Dial

1 specs
Crystal Shape
n/a
Domed

Movement

4 specs
Caliber
79320
Omega 9900
Beat Rate
28,800 vph
0 vph
Power Reserve
44h
60h
Jewels
25
0

Pricing

1 specs
MSRP
$7,900
$27,300
Keep your wishlist and collection together in the appExplore the app

Reviews

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

IWC Schaffhausen Aquatimer Chronograph

Owners widely praise the IWC Schaffhausen IWC Aquatimer Chronograph as an underappreciated, overbuilt tool watch prioritizing engineering and reliability, with its Valjoux-derived movement offering durability and its chronograph pushers providing mechanical feedback. Reviewers and owners consistently flag its impeccable finishing, captivating appearance, dial depth, and excellent lume, with one owner noting its comfortable wearability despite its size and thickness. Some owners find the chronograph variant chunky at 17mm, and the welded lugs limit strap options to OEM choices or require specific modifications for third-party straps. One owner notes the watch's 120m water resistance, attributing the reduction from the non-chrono version to non-screw-down pushers. Overall, owners rate the IWC Schaffhausen IWC Aquatimer Chronograph highly for its robust build quality and functional design at the price.

Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm

Owners widely report the Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm offers adequate wrist presence and can handle an active lifestyle, with one owner cherishing it as a daily watch. Some reviewers and owners find the 44mm case size could be more proportional and comfortable, with a preference expressed for a 40-42mm option, and one owner noted the bracelet felt "chunky." The helium escape valve is considered an esoteric feature for most users. Overall, owners and reviewers rate the Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm highly for its durability and suitability as an everyday watch, despite some reservations about its size.

Similar watches

Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.

DiscussionNot started

Also compared

Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.