The Citizen Promaster BN0156-05E is the dependable diver Citizen. A genuine ISO-rated dive watch powered entirely by light, it asks for nothing but the occasional bit of daylight: no battery swaps, no winding, no fuss.

On the wrist it wears lighter than its size suggests, and the rubber-style strap shrugs off salt water, sweat and sunscreen. It is just as at home on a reef, a weekend hike or the Monday commute, and it suits the buyer who wants one honest watch that simply works, every day, for years. If you want a Promaster with Japanese-market pedigree, this is it.

Key Features
Case Diameter: 44 mm (measured excluding the crown)
Case Thickness: 11.5 mm – 11.6 mm
Lug Width / Band Width: 20 mm
Weight: 93 g – 94 g
Case Material: Stainless steel
Crystal: Mineral crystal with anti-reflective coating
Movement: Citizen Eco-Drive Caliber E168 solar-powered quartz movement (±15 seconds per month)
Power Reserve: Approx. 6 months on a full charge
Water Resistance: 200 meters (20 ATM), ISO-compliant diver’s watch
Dial Color: Black with luminous hands and markers
Bezel: Unidirectional rotating dive bezel
Bracelet / Strap: Black urethane strap with buckle
Functions: Hours, minutes, seconds, date

Why Choose the Promaster BN0156-05E?
✔ Light-powered Eco-Drive: no battery changes, ever
✔ ISO-compliant 200m diver, not a dive-styled fashion watch
✔ Months of running time from a single full charge
✔ Japanese domestic market edition, less common in Australia
✔ Light on the wrist for a 44 mm diver

Shipping, Returns & Warranty

🚚 Free insured shipping on Australian orders of $150 and above
🌏 Shipping worldwide, including New Zealand at a flat AU$22
🛡️ Japanese domestic market model – manufacturer’s warranty is issued for Japan and WatchBay coordinates support on your behalf. 15-day change-of-mind returns apply. See our Warranty & Authenticity page