Circula Watches AquaSport IIvsSeiko Prospex Sea 1968 Heritage Diver's GMT

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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.

Circula Watches AquaSport II at true scale

AquaSport II

Seiko Prospex Sea 1968 Heritage Diver's GMT at true scale

Prospex Sea 1968 Heritage Diver's GMT

Diameter

40mm

42mm

Lug-to-Lug

46mm

lowest

48.6mm

Thickness

12.6mm

lowest

12.9mm

Water Resistance

200m

200m

Power Reserve

41h

72h

highest

MSRP

n/a

$1,500

Movement

Sellita SW200-1

Seiko 6R54

Case

3 specs
Diameter
40mm
42mm
Thickness
12.6mm
12.9mm
Lug-to-Lug
46mm
48.6mm

Crystal & Dial

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

Movement

3 specs
Caliber
Sellita SW200-1
Seiko 6R54
Power Reserve
41h
72h
Jewels
0
24

Pricing

1 specs
MSRP
n/a
$1,500
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Reviews

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

Circula Watches AquaSport II

Owners and reviewers widely praise the Circula Watches AquaSport II for its 1970s-inspired design, comfortable 40mm wearability, and attractive dial with applied indices that catches light and shadow. The hand-crafted case finishing is described as incredible, and the lume is spectacular. The bezel action is noted as subtle and solid, and the Sellita SW200-1 automatic movement is considered reliable. The watch is competitively priced starting at EUR 599, with owners finding it offers significant value for the money, often including extra straps. Overall, owners and reviewers rate the Circula Watches AquaSport II highly for its exceptional finishing and value proposition at its price point.

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and value, with owners noting its comfortable wearability and attractive aesthetic, particularly the silver/white sunray dial and blue ceramic bezel. The improved bracelet clasp with excellent micro-adjustment is a recurring positive point. Some owners report accuracy figures of +3 seconds per day or +/- 5 seconds per day, exceeding the movement's stated range. However, the GMT functionality is considered secondary to its dive watch capabilities by some, with the GMT scale being difficult to read and the caller-style GMT movement being a drawback for certain users. The dial contrast is also noted as lacking by some, and the crown at 4 o'clock is undesirable for a few. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT highly for its blend of dive watch character and GMT functionality, offering significant features for its price.