Horological Atlas
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slow· DressReference model

Jo 03

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Price
USD320

A black steel case with a black dial and a silver hand, worn on a black stainless steel link bracelet. The Jo is the octagonal slow: 38 mm across, 42.5 mm from end to end and 9.5 mm tall under a raised K1 mineral glass, water resistant to 100 m. Its Ronda 505.24 Swiss Made quartz carries one hand round a 24-hour dial, so the hand moves at half the pace of an ordinary hour hand and a single glance shows how far the day has run. The house says it can be read to within a minute or two. 125 g without the box.

Movement
Ronda 505.24 Swiss Made, quartz
Case
38 mmStainless steel
Battery
45 mo
Water
100 m

Specifications

Case
Construction
Black steel case, 38 mm wide and 42.5 mm long, 9.5 mm thick with its glass (8.2 mm without), extra hardened K1 mineral glass with a 34 mm opening
Diameter
38 mm
Material
Stainless steel
Lug width
22 mm
Lug to lug
42.5 mm
Water resistance
100 m
Movement
Caliber
Ronda 505.24 Swiss Made, quartz
Battery life
45 months
Jewels
1
Dial & strap
Dial
Black
Hands
Single hand, silver
Strap / bracelet
Black stainless steel link bracelet, 22 mm tapering to 20 mm
Catalogue
Tier
Accessible

Also runs on the Ronda 505.24

56 watches in the catalogue run on it, priced from $270 to $320.

  1. slow
    O 12
    $300
  2. slow
    O 13
    $300
  3. slow
    O 14
    $300
  4. slow
    O 15
    $300
  5. slow
    Jo 01
    $320
  6. slow
    Jo 02
    $320
  7. slow
    Jo 03THIS WATCH
    $320
  8. slow
    Jo 04
    $320
  9. slow
    Jo 31
    $320
  10. slow
    Jo 32
    $320
  11. slow
    Mo 01
    $320
  12. slow
    Mo 02
    $320

Collector photographs

Taken by people who own this reference: their light, their wear, their patina. Not the maker’s photography. Where the maker hasn’t given us a photograph, one of these is shown as the main image above, always credited. A few are the Atlas’s own, and say so.

No collector photographs yet

If this watch is in your collection, yours would be the first. A photograph on the wrist shows what a studio image cannot: scale, wear, and how the piece has actually aged.

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How to get one

This exact reference

The maker's page for this exact reference, the same page this catalogue's specifications are sourced from.

Direct from slow

slow publishes its current collection and its retailer or service network on its own site. Start there for what is actually in production; this catalogue records references whether or not they are still sold.

Buyer’s tip

Check the model name, case material and any edition number against the maker's own page before buying anywhere else. No reference number is recorded for this watch, so those are the details that identify it.

Next · slow Jo 04 →