Watch Elements / Movement catalogue The calibre library · 26 guides
The movementsbehind the dial. From the familiar NH35 to a perpetual-calendar Patek Philippe. Explore the construction, character and practical differences that make a movement worth knowing.
01 The whole library From quartz to perpetual calendars ↗ 02 Everyday & independent Essential references & independent watchmaking ↗ 03 Manufacture & high horology Rolex, Grand Seiko, Patek Philippe, Lange & more ↗
Search calibres ManufacturerAll A. Lange & Söhne Audemars Piguet ETA Grand Seiko La Joux-Perret Miyota Patek Philippe Rolex Ronda Sea-Gull Sellita TMI Zenith Movement typeAll Automatic mechanical Hand-wound mechanical Quartz Spring Drive Display / complicationAll Chronograph Date Day-date GMT Outsize date Perpetual calendar Small seconds Time only
TMI Date
NH35 Automatic mechanical A three-hand automatic with a date display. A straightforward place to start exploring the NH family.
Timebase 3 Hz
Power reserve More than 41 h
Height 5.32 mm Explore calibre ↗ TMI GMT
NH34 Automatic mechanical An automatic with a central GMT hand and date. The additional hand gives a second time reference on a 24-hour scale.
Timebase 3 Hz
Power reserve More than 41 h
Height 5.32 mm Explore calibre ↗ TMI Day-date
NH36 Automatic mechanical The NH family’s day-date option, adding the day of the week alongside the date.
Timebase 3 Hz
Power reserve More than 41 h
Height 5.32 mm Explore calibre ↗ Miyota Date
8215 Automatic mechanical Miyota’s standard automatic with three hands and date. It combines automatic winding with hand winding.
Timebase 3 Hz
Power reserve Approx. 42 h
Height 5.67 mm Explore calibre ↗ Miyota Date
9015 Automatic mechanical A slim automatic with three hands and date, running at 28,800 vibrations per hour.
Timebase 4 Hz
Power reserve Approx. 42 h
Height 3.90 mm Explore calibre ↗ Miyota GMT
9075 Automatic mechanical An automatic GMT movement with a central GMT hand and individual adjustment of the local hour hand.
Timebase 4 Hz
Power reserve Approx. 42 h
Height 4.92 mm Explore calibre ↗ TMI Time only
NH38 Automatic mechanical A no-date NH automatic designed to expose its balance through an open-heart dial.
Timebase 3 Hz
Power reserve More than 41 h
Height 5.32 mm Explore calibre ↗ Miyota Date
8315 Automatic mechanical A longer-running alternative to the 8215, retaining a 3 Hz rhythm and date display.
Timebase 3 Hz
Power reserve Approx. 60 h
Height 5.67 mm Explore calibre ↗ Miyota Time only
9039 Automatic mechanical The slim, three-hand, no-date member of Miyota’s premium mechanical range.
Timebase 4 Hz
Power reserve Approx. 42 h
Height 3.90 mm Explore calibre ↗ Sea-Gull Small seconds
ST36 Hand-wound mechanical A large hand-wound movement family used as a teaching platform for learning mechanical watchmaking.
Timebase Not listed here
Power reserve Version dependent Explore calibre ↗ Sea-Gull Chronograph
ST1901 Hand-wound mechanical A hand-wound column-wheel chronograph with central elapsed seconds and a minute counter.
Timebase 3 Hz
Power reserve Approx. 45 h; 37 h with chronograph Explore calibre ↗ Sellita Date
SW200-1 Automatic mechanical A Swiss automatic reference point for understanding a conventional three-hand date movement.
Timebase 4 Hz
Power reserve 38 h minimum / 41 h typical
Height 4.60 mm Explore calibre ↗ ETA Date
2824-2 Automatic mechanical A foundational Swiss automatic with a date, central seconds and bidirectional automatic winding.
Timebase 4 Hz
Power reserve 42 h typical
Height 4.60 mm Explore calibre ↗ La Joux-Perret Date
G100 Automatic mechanical A Swiss automatic combining a 4 Hz beat rate with a longer 68-hour reserve.
Timebase 4 Hz
Power reserve 68 h
Height 4.45 mm Explore calibre ↗ Ronda Date
515 Quartz A battery-powered analogue quartz movement with three hands and a date.
Timebase Quartz regulated
Battery life 45 months nominal
Height 3.00 mm Explore calibre ↗ Rolex Date
3235 Automatic mechanical Rolex’s date automatic, combining a Chronergy escapement with a long reserve.
Timebase Not listed here
Power reserve Approx. 70 h Explore calibre ↗ Rolex Chronograph
4131 Automatic mechanical The Daytona’s automatic chronograph, with a column wheel and vertical clutch.
Timebase Not listed here
Power reserve Approx. 72 h Explore calibre ↗ Grand Seiko Date
9SA5 Automatic mechanical A high-beat automatic combining a 5 Hz balance with an 80-hour reserve.
Timebase 5 Hz
Power reserve Approx. 80 h Explore calibre ↗ Grand Seiko Date
9RA2 Spring Drive A five-day Spring Drive calibre: mainspring power with quartz-referenced regulation.
Timebase Quartz-regulated glide
Power reserve Approx. 120 h Explore calibre ↗ Patek Philippe Time only
240 Automatic mechanical A thin automatic whose recessed gold mini-rotor makes winding part of the movement’s compact architecture.
Timebase 3 Hz
Power reserve Minimum 48 h
Height 2.53 mm Explore calibre ↗ Patek Philippe Perpetual calendar
240 Q Automatic mechanical A mini-rotor automatic with perpetual calendar and moon-phase indications.
Timebase 3 Hz
Power reserve 38–48 h
Height 3.88 mm Explore calibre ↗ Patek Philippe Small seconds
30-255 PS Hand-wound mechanical A thin hand-wound calibre with small seconds and two parallel barrels.
Timebase 4 Hz
Power reserve Minimum 65 h
Height 2.55 mm Explore calibre ↗ A. Lange & Söhne Outsize date
L121.1 Hand-wound mechanical The hand-wound Lange 1 calibre, combining a twin barrel with an instantaneous outsize date.
Timebase 3 Hz
Power reserve 72 h Explore calibre ↗ A. Lange & Söhne Chronograph
L951.6 Hand-wound mechanical A hand-wound flyback chronograph with an outsize date and jumping minute counter.
Timebase 2.5 Hz
Power reserve 60 h Explore calibre ↗ Audemars Piguet Date
7121 Automatic mechanical A thin automatic created for the modern Royal Oak Jumbo, with a quick-setting date.
Timebase 4 Hz
Power reserve 55 h
Height 3.20 mm Explore calibre ↗ Zenith Chronograph
El Primero 3600 Automatic mechanical A high-frequency automatic chronograph designed to display tenths of a second.
Timebase 5 Hz
Power reserve Approx. 60 h Explore calibre ↗