The Omega Seamaster Aqua Terra features a 38.5mm stainless steel case on a stainless steel bracelet with a deployant clasp, and it's equipped with the Omega Co-Axial calibre 8601. What sets this watch apart is its annual calendar complication, which automatically accounts for months with 30 or 31 days and only needs adjustment once per year.

• Condition: Excellent
• Case size: 38.5mm diameter
• Case material: stainless steel
• Bracelet material: stainless steel

This 1950s Omega Seamaster Calendar Ref. 2627 features a rare Honeycomb dial and is powered by the Bumper Automatic movement, housed in a 35mm gold cap case.

• Condition: Great Condition
• Dial: Original Honeycomb pattern with applied steel indices
• Case material: Gold cap case
• Movement: Serviced Bumper Automatic Caliber 355

This Omega Seamaster Calendar features a cream dial with gold accents and date window, housed in a 36mm x 12mm case. It comes on an aftermarket leather strap with OEM buckle.

• Condition: G - good condition for a 50+ year old watch, marks on the acrylic crystal
• Movement: Caliber 503 automatic
• Power reserve: 40 hours
• Crystal type: acrylic

A versatile Omega Seamaster Aqua Terra Annual Calendar watch with a 38.5mm stainless steel case and blue dial, featuring an annual calendar complication and Co-Axial calibre 8601.

• Condition: Excellent
• Case size: 38.5mm diameter
• Movement: Omega Co-Axial calibre 8601

A discontinued Omega Seamaster Aqua Terra 150M featuring an annual calendar complication and black teak dial, housed in a 38.5mm stainless steel case.

• Condition: Excellent
• Case diameter: 38.5mm
• Water resistance: 150m
• Movement: Calibre 8601 automatic

This Omega Seamaster Aqua Terra features an Annual Calendar and Blue Dial, housed in a 38.5mm case.

• Condition: excellent
• Case size: 38.5mm

This is a Omega Seamaster Aqua Terra Annual Calendar with a blue dial, featuring an annual calendar complication and measuring 38.5mm in diameter.

• Condition: Excellent
• Size: 38.5mm diameter

38.5mm Omega Seamaster Aqua Terra Annual Calendar with a blue dial.

• Material: Full Set

A versatile Omega Seamaster Aqua Terra Annual Calendar watch in blue dial with a 38.5mm stainless steel case, featuring an annual calendar complication and the Omega Co-Axial calibre 8601.

• Condition: Excellent
• Case size: 38.5mm diameter
• Bracelet type: stainless steel bracelet
• Clasp type: deployant clasp