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  • Design
  • Skeleton

One & Two Openworked

Speake-Marin 2018

ref. 424207150
Unisex

In 2014, Speake-Marin initiated a strategy to develop its own, in-house movements as the SMA collection. The first of these calibres was a 3 Hz, intended to equip complicated watches such as minute repeaters and double tourbillons. The brand followed this with the SMA01, a 4 Hz movement showing hours, minutes and seconds which joined the One & Two range, and can now be admired in a new version. Both the case and the movement of this One & Two Openworked have been completely refreshed. For example, the crown and lugs has been moved closer to the case. As for the movement, which is COSC-certified, the small seconds subdial is built into the calibre by way of a special module. Proposed in pink gold or titanium, with 38mm and 42mm diameters.

Function

  • Function
    Hours, Minutes, Small seconds

Movement

  • Movement name
    SMA01
  • Energy supply
    Self-winding
  • Power reserve
    52 hours
  • Vibrations
    28800
  • Form
    Round
  • Diameter
    mm

Case

  • Form
    Round
  • Material
    18k pink gold
  • Diameter
    38.00 mm
  • Back
    Sapphire
  • Water-resistance
    30 m

Dial

  • Material
    Openworked
  • Colour
    Grey

Strap

  • Material
    Alligator
  • Colour
    Dark brown
  • Fastening
    Pin buckle

Characteristics

  • Certifications
    COSC