Nivada Grenchen 32068A01 Aquamar Black 38mm Automatic Tropic Strap Citizen Eco-Drive BN0211-50E Promaster Tough Both Frankfurt GMT models have

Both Frankfurt GMT models have black leather straps and are supplied in a modern silver gift box with a "Remove before flight" keyring

Quick correction for moon phase and date

The max bill Regulator has the typical face of the model series with a discreet fine silver-plated dial and a unique typography designed especially for these models

multi-dimensional hour markers

Water-Resistance: WR50/5Bar/166ft [Still Water Swimming]

Nivada Grenchen 32068A01 Aquamar Black 38mm Automatic Tropic Strap Citizen Eco-Drive BN0211-50E Promaster Tough Both Frankfurt GMT models haveThe Aquamar collection is Nivada Grenchen's modern revival of a lesser known but charismatic dive watch from the late 1960s. Rooted in the Antarctic family, each Aquamar model blends vintage charm with professional grade technical features, making it a highly versatile and collectible timepiece. Faithful to its original proportions, the Aquamar features a 38 mm stainless steel case, double domed sapphire crystal, and a 200 meter water resistance