Calamai · Microbrand · Italy
Calamai G50
- Soprod M100
- 40 mm × 14.9 mm
- Sapphire crystal
- 100 m water resistance
Where to buy
Movement
- Caliber
- Soprod M100
- Type
- Automatic
- Tier
- Premium
- Complications
- Hours, Minutes, Small seconds, Date, Chronograph
- Frequency
- 28,800 bph
- Power reserve
- 42 h
- Hacking
- Yes
- Accuracy (factory)
- —
- Modifications
- Chronograph module with 30-minute and 12-hour counters on the Soprod A10 base (module maker not stated)
Case
- Diameter
- 40 mm
- Lug to lug
- —
- Thickness
- 14.9 mm
- Lug width
- 20 mm
- Material
- Steel
- Hardening
- —
- Water resistance
- 100 m
- Crown
- Screw-down
- Case back
- —
- Bezel
- —
Crystal & dial
- Crystal
- Sapphire
- Shape
- —
- Anti-reflective
- Yes (side not stated)
- Lume
- —
Bracelet
- Bracelet
- —
Straps
- Strap 1
- Leather, Alligator strap with pin buckle
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
Variants
| Name | Dial | Status |
|---|---|---|
| Bianco | white | Limited (30) |
| Nero | black | Limited (70) |
About this entry
67% of key specs known. Missing: lug-to-lug, weight, hardening, lume, bracelet offered.
Calamai's first chronograph, named after the Fiat G.50 fighter; the brand's case steel is cast from F-104 Starfighter turbine steel. Brand specs: Ø40mm, 14.90mm thick, stainless steel, screw-down crown, AR-coated sapphire, 10 ATM, Soprod A10 automatic with 30-minute and 12-hour chronograph counters, 20mm alligator strap with pin buckle, made in Italy. Limited editions of 30 (white dial, green/brown strap) and 70 (black dial, black/brown strap); both are sold out and listed under the brand's past collections. Monochrome (2017) says the brand started with a Soprod-powered G50 chronograph run of 100 pieces. The A10 is a three-hand base, so the chronograph is modular; the movement is linked to soprod-m100, the A10's later name, with the module noted under modifications. The spec table's movement figures (7.90mm height, 25 jewels, 48h) are the Valjoux 7750's, repeated from the G50-B page, and are not used. Photos show small seconds at 9, counters at 3 and 6 and a date at 4:30. The G50-B (Valjoux 7750), G50 Freccia (Sellita SW510) and G50V (Sellita SW511) are recorded separately. The brand's terms of sale say prices include IVA (Italian VAT).
Last verified: 2026-10-31. Edit or correct this entry.
Sources
- Orologi Calamai, G50 Bianco (spec table) accessed 2026-10-31
- Orologi Calamai, G50 Nero (spec table) accessed 2026-10-31
- Orologi Calamai, Collezioni passate (past collections) accessed 2026-10-31
- Monochrome Watches, Review of the Orologi Calamai CR42 Chronograph (2017; brand history) accessed 2026-10-31
- Grail Watch Reference, Soprod A10 family accessed 2026-10-31