Citizen Promaster Dive BN0150-28E: the solar dive watch that never needs a battery

No battery, ever. Citizen says Eco-Drive is "powered by light, any light" and that, because the watch never needs a battery, you never need to open the caseback, which keeps the factory seal intact [1]. That's a real advantage for a dive watch.

Water and toughness. The 200 m rating, screw-down crown and screw-back case [1][2] mean you can swim, snorkel and rinse it. Citizen Canada describes it as ISO compliant for diving [2]. A salvage-yard manager says theirs survived two years of knocks with no issues [3].

Light on the wrist. At 93.55 g on its strap [2], it's much lighter than most steel divers. A new owner says it wears much smaller than its 44 mm suggests [4].

Readable. Owners praise its strong lume [4]. The anti-reflective crystal cuts glare [1].

Easy with gloves. One owner says the bezel is easy to turn with gloves on [5].

Mineral crystal. Citizen lists an anti-reflective mineral crystal [1]. It's tough, but it scratches more easily than sapphire.

Size. 44 mm is a big number, even if owners say it wears smaller [4]. Try one on if your wrist is under about 6.5 inches.

No published reserve or accuracy. Citizen doesn't list a power reserve or accuracy rating for the E168 on the pages we read [1][2].

Stock. It was marked temporarily out of stock at Citizen US on 2026-10-16 [1]. Buy from an authorized retailer to keep the warranty valid.

The strap. The polyurethane strap is practical [1], but many owners swap it. Its 20 mm lugs take most NATO and rubber straps [1].

• Swimmers, snorkelers and divers who want a real dive rating [1].
• Anyone who wants a watch that never needs a battery [1].
• People who work with their hands and want a watch they don't baby [3][5].
• Buyers who want a long warranty, 5 years [1].

• People who want a slim or small watch. Look at the Hamilton Khaki Field Mechanical 38mm, 38 mm and $675 [6].
• Those who want exact, self-setting time and digital functions. The G-Shock GMW-B5000D-1 syncs by radio and Bluetooth. See Citizen Eco-Drive vs G-Shock Full Metal.
• Buyers who want sapphire. The Seiko Alpinist SPB121 has a sapphire crystal and 200 m rating.

Charging in the sun. Desert light keeps an Eco-Drive charged easily [1]. If it sits in a drawer, put it on a windowsill for a while before a trip.

Heat. A dark watch in direct sun gets hot. We didn't find a Citizen temperature range on the pages we read, so don't leave it on a dashboard.

Rinse after dust. With the crown screwed down, the 200 m rating [1] means you can rinse grit off. An owner says a hose rinse cleans it [5].

Timing. The one-way bezel [2] works as a simple timer for a pot on the stove, a parking meter or a hike turnaround time.

Night reading. The luminous hands and markers [1] let you read it in a tent. Owners call the lume strong [4].

• A salvage-yard manager says the BN0150-28E is still their daily watch after two years of knocks, with no issues [3].
• An owner who wears this Promaster most says it handles work and the woodshop, the bezel is easy with gloves, and a hose rinse cleans it [5].
• A new owner says it wears much smaller than 44 mm and has strong lume. Another commenter says theirs has been diving for years [4].
• The complaints we found are mild: the mineral crystal [1] and the size on small wrists [4].