Colomer & Sons · Microbrand · Spain
Colomer & Sons Marine Chrono
- Ronda 5030.D
- 40 mm
- Sapphire crystal
- 50 m water resistance
Movement
- Caliber
- Ronda 5030.D
- Type
- Quartz
- Tier
- Mid
- Complications
- Small seconds, Date, Chronograph
- Frequency
- n/a
- Power reserve
- n/a
- Hacking
- n/a
- Accuracy (factory)
- —
Case
- Diameter
- 40 mm
- Lug to lug
- —
- Thickness
- —
- Lug width
- 20 mm
- Material
- Steel (316L)
- Hardening
- —
- Water resistance
- 50 m
- Crown
- Screw-down
- Case back
- —
- Bezel
- Fixed, tachymeter
Crystal & dial
- Crystal
- Sapphire
- Shape
- —
- Anti-reflective
- Yes (side not stated)
- Lume
- Luminous hands and index dots (compound not stated)
Bracelet & clasp
- Style
- —
- Links per row
- —
- Solid end links
- —
- Solid links
- —
- Link attachment
- —
- Taper
- —
- Quick release
- —
- Half links
- —
- Clasp
- Butterfly
- Micro-adjust
- —
- Diver extension
- —
Straps
- Strap 1
- Leather, 20mm leather strap with butterfly clasp; offered in blue, burgundy or black
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
- Stated weight (basis not given)
- 152 g
Prices
Variants
| Name | Dial |
|---|---|
| Blue | blue sunburst with silver subdials |
| Green | green sunburst with silver subdials |
| White | white with black subdials |
About this entry
63% of key specs known. Missing: lug-to-lug, thickness, hardening, bracelet links, end links, link attachment, clasp micro-adjust.
Sold as six store listings: Blue, Green and White Marine Chrono on a steel bracelet, and the same three as "… Marine Chrono Piel" on a leather strap, all at 299 EUR (220 EUR on sale). The spec lists agree across all five pages that loaded: Swiss quartz Ronda 5030D chronograph (seconds at 3, 30-minute counter at 9, 12-hour counter at 6, date at 4), lumed hands and index dots, anti-reflective sapphire, 316L steel case with screw-down crown, 5 ATM, 40mm without crown, 152 g. The same 152 g appears on the bracelet and leather pages, so what was weighed isn't clear. The bracelet is 316L steel, 20mm, with a butterfly clasp ("cierre de mariposa"; the descriptive text calls it a safety clasp), sized to order (17-24cm). The leather version's strap comes in blue, burgundy or black (the store also lists yellow and brown as options without stock). The White Marine Chrono bracelet page was behind the site's spam firewall on 2026-10-31 (twice); its store data and description match the others (316L steel, 5 ATM), and its price is from the store data. The Blue Marine Chrono Piel's short description says "esferas verdes" (copied from the green one); its spec list and photos show the blue dial. The bezel is a fixed tachymeter scale (from photos).
Last verified: 2026-10-31. Edit or correct this entry.
Sources
- Colomer & Sons, Blue Marine Chrono (product page and spec list) accessed 2026-10-31
- Colomer & Sons, Blue Marine Chrono Piel (product page and spec list) accessed 2026-10-31
- Colomer & Sons, Green Marine Chrono (product page and spec list) accessed 2026-10-31
- Colomer & Sons, Green Marine Chrono Piel (product page and spec list) accessed 2026-10-31
- Colomer & Sons, White Marine Chrono Piel (product page and spec list) accessed 2026-10-31
- Colomer & Sons store data, White Marine Chrono (WooCommerce Store API) accessed 2026-10-31