1989–
Promaster
Citizen's sport and tool watch line for diving, flying and land use.
Promaster is Citizen's umbrella line for professional-use watches, grouped into Marine (diving), Sky (aviation) and Land models. Many earlier professional Citizen divers are retroactively grouped with Promaster by collectors.
Watches in this family
Ref. unknown · 1982–
Professional Diver 1300m
Promaster
Ref. unknown · 1985–
Aqualand (first generation)
Promaster
NY0040 · Unknown
Promaster Automatic Diver "Fugu"
Promaster · Cal. 8203

NB6021-17E · Unknown
Promaster Mechanical Diver NB6021-17E
Promaster · Cal. 9051

NB6021-68L · Unknown
Promaster Mechanical Diver NB6021-68L
Promaster · Cal. 9051

BN0225-04L · Unknown
Promaster Eco-Drive Diver BN0225-04L
Promaster · Cal. E168