echo/neutra · Microbrand · Italy

echo/neutra 1956 Chrono

In production · Chronograph

echo/neutra 1956 Chrono with black dial and cream sub-dials
Photo: echo/neutra
  • echo/neutra 1956 Chrono with warm gray dial
  • echo/neutra 1956 Chrono with white dial on tropical rubber strap
  • echo/neutra 1956 Chrono with alpine green dial on tropical rubber strap
From $1,897 to $1,953
  • Sellita SW510 M
  • 40 mm × 14.1 mm
  • Sapphire crystal
  • 100 m water resistance

Movement

Type
Hand-wound
Tier
Upper
Complications
Hours, Minutes, Small seconds, Chronograph
Frequency
28,800 bph
Power reserve
63 h
Hacking
Yes
Accuracy (factory)
—
Grade
Elaboré
Modifications
SW510 M BH b execution (horizontal bicompax, no date)

Case

Diameter
40 mm
Lug to lug
46 mm
Thickness
14.1 mm
Lug width
20 mm
Material
Steel (316L)
Hardening
—
Water resistance
100 m
Crown
Push/pull
Case back
Solid
Bezel
Fixed, telemeter
Finishing
Alternating polished and brushed surfaces

Crystal & dial

Crystal
Sapphire
Shape
Domed
Anti-reflective
Inner
Lume
Super-LumiNova Old Radium or BGW9 (by colourway)

Bracelet & clasp

Style
—
Links per row
3
Solid end links
—
Solid links
—
Link attachment
Screws
Taper
—
Quick release
—
Half links
Yes
Clasp
—
Micro-adjust
—
Diver extension
—

Straps

Strap 1
Rubber, Black "Tropical" rubber strap made in Italy, included with every watch
Strap 2
Leather, Second strap options, black vintage leather, black water buffalo or "Tobacco" vintage suede (Alpine Green)
Strap 3
Other, Second strap options, Milanese mesh or racing strap

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
Blacktropical rubber + second strapMsrp1,690 EURincl. VAT$1,8972026-10-24link
Blacktropical rubber + metal braceletMsrp1,740 EURincl. VAT$1,9532026-10-24link
Warm Graytropical rubber + second strapMsrp1,690 EURincl. VAT$1,8972026-10-24link
Warm Graytropical rubber + metal braceletMsrp1,740 EURincl. VAT$1,9532026-10-24link
Whitetropical rubber + second strapMsrp1,690 EURincl. VAT$1,8972026-10-24link
Whitetropical rubber + metal braceletMsrp1,740 EURincl. VAT$1,9532026-10-24link
Alpine Greentropical rubber + second strap or metal braceletMsrp1,740 EURincl. VAT$1,9532026-10-30link

Price history

VariantConfigurationTypePriceUSDAs ofSource
Alpine Greentropical rubber + second strap or metal braceletMsrp1,700 EURincl. VAT$1,9082026-10-25link

Variants

NameReferenceDialBezel
BlackCO5HBKblack with cream sub-dialsblack ceramic telemeter
Warm GrayCO5HGYwarm grayblack ceramic telemeter
WhiteCO5HFWHwhiteblack ceramic telemeter
Alpine GreenCO5HGRalpine greengreen sapphire telemeter

About this entry

79% of key specs known. Missing: weight, hardening, end links, clasp micro-adjust.

Hand-wound bicompax chronograph from the 1956 collection. Brand specs: Sellita SW510M BH b hand-wound elaboré, 40mm, 46mm lug-to-lug, 14.1mm, 100m, push/pull crown, ultra-domed sapphire with double internal anti-reflective coating, fixed telemeter bezel, closed 316L caseback engraved with the collection logo. In Sellita's catalogue "BH" is the horizontal bicompax layout (small seconds at 9, 30-minute counter at 3, no 12-hour counter) and "b" the no-date execution, which matches the dials. Lug width (20mm) is from the authorized retailer SeriousWatches. Black, Warm Gray and White have a ceramic bezel insert with lumed markers; the Alpine Green (added January 2026) has a sapphire bezel and BGW9 on the hands only (the brand doesn't mention bezel lume for it). Lume is Old Radium Super-LumiNova on the Black and BGW9 on the other three. Every watch comes on a black tropical rubber strap plus a second strap of the buyer's choice, or the 1956 bracelet for €50 more (Alpine Green: €1,700 with any option). The import on 2026-10-24 recorded €1,450 for the Alpine Green; the store showed €1,700 on 2026-10-25 and that is recorded. On 2026-10-25 one White and one Alpine Green option were out of stock. The 1956 bracelet fits only chronographs with "523XXX" serial numbers, so earlier cases differ; the Black listing dates back to 2021 and earlier specs may differ. Bracelet links per row are counted from the brand's photos of the 1956 bracelet. Weight not published.

Last verified: 2026-10-25. Edit or correct this entry.

Sources