Apple Watch Lug Assembly Guidelines

NOTICE OF PROPRIETARY PROPERTY: THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN IS THE PROPRIETARY PROPERTY OF APPLE INC. THE POSSESSOR AGREES TO THE FOLLOWING: (I) TO MAINTAIN THIS DOCUMENT IN CONFIDENCE, (II) NOT TO REPRODUCE OR COPY IT, (III) NOT TO REVEAL OR PUBLISH IT IN WHOLE OR IN PART, (IV) ALL RIGHTS RESERVED.

ACCESS TO THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN IS GOVERNED BY THE APPLE INC. TERMS AND CONDITIONS FOR USE OF AUTHORIZED APPLE WATCH LUGS. ALL OTHER USE SHALL BE AT APPLE’S SOLE DISCRETION.

Introduction

Proper assembly of the lug is critical to ensure your band securely attaches to the Apple Watch. Improper assembly could result in damage to the Apple Watch. Carefully follow the guidelines below. Apple Watch lugs may only be used in bands that comply with Apple’s Band Design Guidelines for Apple Watch.

Required Tools for Assembly

■ Pentalobe 1.1 screwdriver bit model no. 05300018002 (individual unit) or 05300018001 (250 units) from Wera Tools. Individual units are available for purchase from Avnet’s Apple Watch lug procurement website.

- Recommended electric screwdriver: Atlas Copco model no. ETD M20 ABL.■ One or more fixtures with clamping device for proper screw alignment/activation pressure. The fixture

will hold the lug assembly in place and the clamping device will compress the lug during screw insertion.

- Example of fixture:

- Example of fixture with clamping device:

2015-09-30 | Copyright © 2015 Apple Inc. All Rights Reserved. !1

Assembly Steps

1. Review the Apple Watch lug drawing (Figure 2-2) in Apple’s Band Design Guidelines for Apple Watch.

2. Lightly insert the long end of the female pin in the band until hard stop. Ensure there is no warping or damage in the band.

3. Lightly insert the long end of the male pin in the other side of the band until it interlocks with the female pin and both pins are seated together. Ensure there is no warping or damage in the band.

4. Align the holes on the bottom of the lug with the exposed ends of the female and male pins.

5. Install both screws at the top of the lug. Lug screw specification:

■ Torque: 1.1Kgf*cm +/- 10%■ RPM: 120 +/- 10%

6. Inspect for screw proudness and cross-threading visually at 1200-1400 LUX. See “Proper Screw Installation” below.

■ Do not re-use screws that have been previously installed/used. Remove any screw with damage or machine fault and replace it with a new one.

Proper Screw Installation

■ Screw is just sub-flush to the lowest part of the counterbore and appears parallel to the long axis of the lug.

■ Screw is flat and concentric with the counterbore, without damage to the Pentalobe pattern.

2015-09-30 | Copyright © 2015 Apple Inc. All Rights Reserved. !2