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IWC Schaffhausen IWC Aquatimer ChronographvsSeiko Prospex Sea Save the Ocean Special Edition

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

What people say

Owners + reviewers, side by side

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

IWC Schaffhausen IWC Aquatimer Chronograph

Owners widely praise the IWC Schaffhausen IWC Aquatimer Chronograph as an overbuilt, underappreciated tool watch prioritizing engineering and reliability, with impeccable finishing, captivating appearance, and excellent lume. The chronograph pushers offer mechanical feedback, and the internal rotating bezel enhances safety. Some owners find the chronograph variant chunky at 17mm and note the welded lugs limit strap options to OEM choices or require specific modifications for third-party straps. One owner notes its 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 solid build, beautiful looks, and functional integrity.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive, unique, and textured dials, often described as having a "Grand Seiko feel" at a more accessible price point, with specific mentions of wave patterns, lagoon hues, and manta ray motifs. Owners appreciate the smooth bezel operation and satisfactory lume. Accuracy figures vary, with one owner reporting +5 seconds per day, while another notes a range from +1/+2 to about -6 seconds per day. The 6R35 movement offers a 70-hour power reserve, and some models feature sapphire crystals. Criticisms include a desire for exhibition casebacks and concerns about the quality and security of the stamped metal clasps and bracelets, which are frequently described as rattly or underwhelming, though this is noted as a common Seiko trait. Some owners are split on the number of Save the Ocean variations and dislike the cyclops magnifier.

At a glance

16 of 29 specs differ
Diameter
IWC Aquatimer Chronograph44mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
IWC Aquatimer Chronograph44h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
IWC Aquatimer Chronograph300m
Prospex Sea Save the Ocean Special Edition200m
MSRP
IWC Aquatimer Chronograph$7,900
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

6 specs
Diameter
44mm
45mm
Thickness
17mm
13.2mm
Lug-to-Lug
47.7mm
Finish
Steel
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Crystal Shape
Flat
AR Coating
Anti-reflective coating on inner surface
Indices
Applied
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
79320
4R36
Power Reserve
44h
41h
Jewels
25
24
Complications
Chronograph
None

Pricing

1 specs
MSRP
$7,900
$625
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