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Best Solar-Powered Dive Watches

A solar-powered dive watch offers convenience and peace of mind over mechanical and battery-powered dive watches. Unlike a mechanical watch, a solar-charged watch will still run for many months if not worn at all. Unlike a battery-powered watch, a solar watch does not need costly and time-consuming maintenance every few years.

Solar-powered watches use solar cell panels in the watch display to convert light into energy. This energy is then stored in a rechargeable battery or capacitor to power the watch. Solar-powered watches can be charged from any kind of light source, from indoor fluorescent lighting to the sun.

Three companies dominate the solar watch market: Casio, Citizen, and Seiko. Casio uses the “Tough Solar” feature in many of its watches including G-Shock and Pro Trek brands. Citizen uses its solar “Eco-Drive” technology in hundreds of models. Seiko simply labels its many solar watches as “Solar.”

Despite the large number of solar watches on the market, there are only a few solar-powered dive watches. True diving watches should be compliant with the ISO 6425 standard and are suitable for scuba diving. In order to qualify as one of the best solar-powered dive watches, all watches on this list must have an ISO-compliant water-resistance rating of 200-meters (or 20ATM). The ISO-certification is commonly indicated on the watch face with a “Diver’s” label before the water-resistance rating (e.g. “Diver’s 200m”).

Seiko Prospex SNE441

Classic Dive Design with Silicone Strap

The 43.5mm-wide Seiko Prospex SNE441 has a classic diving design with a silicone band, one-way rotating bezel, screw-down crown and case back, date display, and LumiBrite glowing hands and markers. This solar diver can go 10 months on its power reserve after a full charge.

Seiko Prospex SNE441 ISO 200M Solar Dive Watch

Seiko Prospex SNE435

Special PADI Edition with Stainless Steel Band

The Seiko Prospex SNE435 has the same case and specs as the SNE441, but with a blue design and a stainless steel band. This watch is a special edition made in partnership with PADI (Professional Association of Diving Instructors) and has a PADI logo on the face.

Seiko Prospex SNE435 ISO 200M Solar Dive Watch

Citizen Promaster Diver BN0150-28E

Traditional Dive Watch with Eco-Drive Solar Power

The Citizen Promaster Diver BN0150-28E also has a classic dive watch design and uses Eco-Drive solar technology. Eco-Drive watches are known for using a capacitor rather than a rechargeable battery and Citizen says it “never needs a battery.” This 42mm-wide dive watch has a one-way rotating bezel, polyurethane strap, and a mineral crystal with anti-reflective coating.

Citizen Promaster Diver BN0150-28E ISO 200M Solar Dive Watch

Seiko Prospex SSC031

A Solar Chronograph Diver

The Seiko Prospex SSC031 is a solar chronograph diver with three subdials. The chronograph measures up to 60 minutes in 1/5 second increments with a split time function. Another subdial serves as a 24-hour indicator. It also has a date display, one-way rotating bezel, LumiBrite hands and markers, and a polyurethane band. This solar-powered watch can go up to six months on a full charge.

Seiko Prospex SSC031 ISO 200M Solar Dive Watch

Seiko Prospex SNE107

Contemporary Solar-Powered Dive Watch with Stainless Steel Band

The 42mm-wide Seiko Prospex SNE107 features a more contemporary design for a dive watch but it has the usual features like a one-way rotating bezel, LumiBrite hands and markers, date display (and also day of week). It is similar to the SNE441 and SNE435 with a screw-down case back and up to 10 months of power on a full charge.

Seiko Prospex SNE107 ISO 200M Solar Dive Watch

Seiko Prospex SNE107P2

Contemporary Solar-Powered Dive Watch with Urethane Band

The Seiko Prospex SNE107P2 is a more casual and affordable version of the SNE107 featuring a black urethane band.

Seiko Prospex SNE107P2 ISO 200M Solar Dive Watch

Casio G-Shock Frogman GWF-D1000B-1

Advanced Solar Digital Dive Watch with Sensors

The Casio G-Shock Frogman GWF-D1000B-1 is the latest generation of G-Shock’s flagship diving watch. The Frogman is the top all-digital G-Shock and combines Casio’s Tough Solar technology with G-Shock’s legendary toughness. It is the only G-Shock series with ISO-compliant water-resistance and one of the only G-Shock models with a stainless steel inner case housing the module. New features in the GWF-D1000B-1 include a water depth meter, compass, and thermometer, all of which work underwater and can be used with the time stamp memory function. Other high-end features that are new to this generation include a sapphire crystal and a carbon fiber insert band. The Frogman also has tide and moon age data and the Multi-Band 6 feature, which will adjust the time automatically through the reception of radio waves. The 53.3mm-wide GWF-D1000B-1 is a large watch and is designed to be worn over wetsuits.

G-Shock Frogman GWF-D1000B-1 ISO 200M Solar Dive Watch

Casio G-Shock Frogman GWF-1000-1

Solar-Powered Digital Dive Watch with Legendary Toughness

Though now overshadowed by the GWF-D1000, the previous generation G-Shock Frogman GWF-1000 is no slouch and is still a current model being produced in Japan. The ISO-compliant GWF-1000 was actually submersed to 1000 meters in a real world test and it survived with no damage. The 52.8mm-wide GWF-1000 doesn’t have the environmental sensors of the GWF-D1000, but it does have a tide and moon graph, a dive time and surface interval measurement function, and Multi-Band 6 timekeeping.

G-Shock Frogman GWF-1000-1 ISO 200M Solar Dive Watch

Buy G-Shock GWF-1000-1 at Amazon


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