BOLDR Supply Co. Expedition II EverestvsSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition
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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.

Expedition II Everest

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition
Diameter
41mm
40.5mm
Lug-to-Lug
n/a
47.6mm
Thickness
14mm
13.2mm
lowest
Water Resistance
200m
200m
Power Reserve
n/a
70h
MSRP
$699
lowest
$1,250
Movement
Sellita SW200-1
Seiko 6R35
Case
3 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the BOLDR Supply Co. Expedition II Everest for its compact 41mm wearability and surprisingly deep dial, with reviewers highlighting its excellent lume. The Sellita SW200-1 movement is noted for running within acceptable daily accuracy ranges, between +4 and -3 seconds per day. However, the included silicone or EPDM rubber strap is consistently criticized as stiff and a dust magnet, with one owner finding bezel rotation inconsistent when screwing down the crown. On balance, owners and reviewers rate the BOLDR Supply Co. Expedition II Everest highly for its wearability and lume, despite the strap being a common point of criticism.
Owners widely praise the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition for its unique dial color and execution, with one owner noting the 44mm lug-to-lug is perfect for most wrists. The watch is considered a refined piece with a fun factor, featuring a dial inspired by Okinawa's ocean colors expected to have a bright sunburst effect. Accuracy figures for the 6R35 movement range, with one owner reporting -10/+10 seconds per day as "pretty amazing," while others note issues with the 6R movement's accuracy. Some owners find the price of 1500€ too high, suggesting a value closer to 900€. On balance, owners and reviewers rate the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition well for its dial execution and wearability, despite some debate over its price point.
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