IWC Schaffhausen Aquatimer ChronographvsSeiko King Turtle

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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

Seiko King Turtle at true scale

King Turtle

Diameter

44mm

45mm

Lug-to-Lug

n/a

47.7mm

Thickness

17mm

13.2mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

44h

highest

41h

MSRP

$7,900

$650

lowest

Movement

79320

Seiko 4R36

Case

5 specs
Diameter
44mm
45mm
Thickness
17mm
13.2mm
Lug-to-Lug
n/a
47.7mm
Finish
Steel
n/a
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
Black
n/a
Lume
None
LumiBrite on hands and index(es)

Movement

7 specs
Caliber
79320
Seiko 4R36
Beat Rate
28,800 vph
0 vph
Power Reserve
44h
41h
Jewels
25
24
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Chronograph
None

Pricing

1 specs
MSRP
$7,900
$650
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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.

Seiko King Turtle

Seiko King Turtle is widely praised for its excellent value and robust design, featuring the reliable 4R36 movement. Owners appreciate its superior lume and a bezel action described as smoother and more precise than some siblings. The 45mm cushion case, while substantial, wears smaller than expected due to its shape and short lug-to-lug distance. On balance, owners and reviewers rate the Seiko King Turtle highly for its proven design and overall value proposition.

From video reviewers

The King Turtle's ceramic bezel and sapphire crystal are significant upgrades. Reviewers noted a slight price increase for these features.

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