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INT.S 691 – interchangeable spare parts
INT.S 691 movement
Which spare parts fit the INT.S 691 movement? For every part you can see which other calibers use the same part according to the original interchangeability list.
37Parts with interchange data
16Calibers sharing parts
Note: We have compiled this overview to the best of our knowledge and belief, based on the original interchangeability lists of INT.S and the original spare-part labels. All information has been carefully checked but is provided without guarantee. Please verify the interchangeability yourself before fitting, especially the height, diameter and execution of the part.
🛒 Spare parts for INT.S 691 in our shop
Cannon Pinion for ST 691, ST 691N, INT.S 691 – Part 245, H.203 – NOS11,90 € incl. VAT *View item ›
Fourth Wheel and Pinion for ST 691, ST 691N, INT.S 3.691, INT.S 691 – Part 22013,90 € incl. VAT *View item ›
Center Wheel, Drilled, without Cannon Pinion, ST 691, 691N, INT.S 691 – Part 206 – NOS13,90 € incl. VAT *View item ›
Crown Wheel Part 420 for ST 69, FHF 60, ST 69-21, ST 691, INT S 69-21 – NOS12,90 € incl. VAT *View item ›🔧 Interchangeable parts
| Part no. | Description | Also fits |
|---|---|---|
| 182ISO 20.030 | Barrel and cover | |
| 195ISO 20.060 | Barrel arbor | |
| 206ISO 30.015 | Center wheel | INT.S 3.691ST 691 |
| 210ISO 30.025 | Third wheel | |
| 220ISO 30.027 | Fourth wheel | INT.S 3.691ST 691 |
| 245ISO 31.080 | Cannon pinion with clam notch | INT.S 3.691 Height 203 INT.S 3.691ST 691 Height 228 INT.S 3.691ST 691 Height 248 INT.S 3.691ST 691 Height 310 INT.S 3.691 Height 335 INT.S 3.691 |
| 255ISO 31.046 | Hour wheel | 1st execution INT.S 3.691 |
| 260ISO 31.041 | Minute wheel | |
| 274ISO 30.052 | INT.S 3.691ST 691 | |
| 275ISO 30.082 | Sweep second pinion | INT.S 3.691 INT.S 3.691 Height 560 INT.S 3.691ST 691 Height 585 INT.S 3.691ST 691 Height 605 INT.S 3.691ST 691 Height 668 INT.S 3.691ST 691 Height 693 INT.S 3.691ST 691 |
| 307ISO 40.301 | Regulator with adjustable stud holder, for flat hairspring | |
| 311ISO 70.800 | Upper cap jewel with end-piece | |
| 330ISO 70.801 | Lower cap jewel with end-piece | |
| 346ISO 70.807 | Lower cap jewel with end-piece, f. esc. wheel | |
| 401ISO 51.010 | Winding stem | |
| 407ISO 31.121 | Clutch wheel | |
| 410ISO 31.120 | Winding pinion | |
| 415ISO 31.020 | Ratchet wheel | |
| 420ISO 31.023 | Crown wheel | |
| 422ISO 81.067 | Crown wheel ring | |
| 425ISO 51.120 | Click | |
| 430ISO 61.080 | Click spring | |
| 435ISO 51.050 | Yoke | |
| 440ISO 61.100 | Yoke spring | |
| 443ISO 51.080 | Setting lever | |
| 443/1ISO 51.080.06 | Setting lever, assembled | |
| 443/5443ISO 51.080.06/.01 | Setting lever | |
| 445ISO 51.090 | Setting lever spring | 1st execution 2nd execution |
| 450ISO 31.100 | Setting wheel | |
| 471ISO 60.131 | Friction spring for sweep second pinion | INT.S 3.691ST 691 |
| 703ISO 30.040.11 | Escape wheel and pinion, for lower end-piece | |
| 2535ISO 13.105 M6 | Date indicator guard | |
| 2556ISO 33.020 M6 | Date indicator driving wheel | |
| 2557/1ISO 91.440 M6 | Date indicator, transferred | |
| 2558ISO 33.010 M6 | Double-toothing hour wheel | Height 212 Height 212 Height 237 Height 237 |
| 2575ISO 63.030 M6 | Date jumper spring | |
| 2576ISO 53.080 M6 | Date jumper, mounted |
Source: original interchangeability lists of INT.S (checked transcription) and checked original spare-part labels · as of 2026-10-28. Height / execution: the part fits only in this height or execution.
🔗 Movements sharing the most parts
❓ Frequently asked questions
Which INT.S 691 spare parts also fit other movements?
For the INT.S 691, 37 part numbers are listed as interchangeable. Together they fit 16 other calibers – the table below shows which part fits which movement.
Which movements share the most parts with the INT.S 691?
The most shared parts: INT.S 3.691 (49 parts), INT.S 69-21 (41 parts), INT.S 3.69 (31 parts).
Can I buy spare parts for the INT.S 691?
Yes, Master Watch Parts currently has 4 matching items in stock.
🛠️ For the workshop
Replacement Sapphire Watch Crystal, Flat, 1.0 mm, Ø 15 - 45 mm22,40 € – 34,90 € incl. VAT *View item ›
HIGH DOMED ACRYLIC GLASS Replacement Watch Glass for Wristwatches and Pocket Watches H: 5.25mm6,99 € – 9,99 € incl. VAT *View item ›
Clock Winding Key No. 8 for 4.25 mm Square, Brass7,95 € incl. VAT *View item ›