Cestrian Ocean Series GMTvsWhitby Watch Co. Ad Mare Diver
Ref. cestrian-ocean-series-black-dial-silicone-strap-automatic-gmt-mens-watch·MSRP $262
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.
Ocean Series GMT

Ad Mare Diver
Diameter
42mm
44mm
Lug-to-Lug
48.5mm
lowest
50.8mm
Thickness
13.9mm
lowest
14mm
Water Resistance
200m
200m
Power Reserve
42h
highest
38h
MSRP
$262
lowest
$550
Movement
Seiko NH34
Sellita SW200-1
Case
3 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Cestrian Ocean Series GMT is priced around 220 euros, a figure noted as only slightly higher than comparable NH34-powered watches available elsewhere. Owners express satisfaction with the value proposition of Cestrian watches at their price point. On balance, owners rate the Cestrian Ocean Series GMT highly for its competitive pricing within the NH34-powered watch market.
Owners widely praise the Whitby Watch Co. Ad Mare Dive Watch as a solid dive watch for its price, with multiple users calling it the best deal under $600 and one rating it 8.5 out of 10. Reviewers note its substantial feel, quality construction, and crisp dial with applied indices, powered by a Sellita SW200-1 automatic movement. Some owners find the 44mm case size to be a comfortable daily wear, with one mentioning the sanded texture of the titanium variant keeps it light. Drawbacks noted by one owner include the absence of a date wheel. Overall, owners and reviewers rate the Whitby Watch Co. Ad Mare Dive Watch highly for its value and build quality at its price point.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.










