GMT Mark 2 (Charcoal Registers)

Autavia 11630 — GMT Mark 2 (Charcoal Registers)

c. 1978–?

Charcoal registers with orange minute-recorder stripes; white-edged full-lume hands.

Heuer catalogue appearances listed by OnTheDash: 78. Case numbers of examples shown by OnTheDash: 337553, 337409.

Photo of the documented piece at OnTheDash · Photo: OnTheDash · © OnTheDash, used with permission · Source: https://www.onthedash.com/chronograph/autavia-11630-gmt-mark-2/

Identifying details

Left-hand crown
Winding crown on the left side of the case.
24-hour hand
Fourth, 24-hour hand read against a 24-hour bezel for a second time zone.
Two-colour 24-hour bezel
Rotating 24-hour bezel split into contrasting day and night halves, read with a GMT hand.

Variants of 11630

Reference overview →

Switch between variants of this reference. The current variant is highlighted.
Variant	Production
Viceroy Style (V)	1972–?
MH, Silver Dial	1972–?
MH, Black Dial	1972–?
P Decompression Bezel	1972–?
GMT Mark 1 (White Registers)	1972–?

Case & movement

Reference: 11630
Production: c. 1978–?
Case serials: c. 310,000–345,999
Case material: Stainless steel
Crystal: Mineral
Movement: Automatic
Date: Yes
Caliber: Heuer Calibre 14

Dial, bezel & hands

Movement

Heuer Calibre 14

Calibre 12-based automatic chronograph with an added 24-hour GMT hand, introduced about 1972 for the Autavia GMTs (1163, 11630, 11063).

Automatic · Introduced 1972 · 17 jewels

Identifying details

Left-hand crown

Winding crown on the left side of the case.

24-hour hand

Fourth, 24-hour hand read against a 24-hour bezel for a second time zone.

Two-colour 24-hour bezel

Rotating 24-hour bezel split into contrasting day and night halves, read with a GMT hand.

Variant

Production

Viceroy Style (V)

1972–?

MH, Silver Dial

1972–?

MH, Black Dial

1972–?

P Decompression Bezel

1972–?

GMT Mark 1 (White Registers)

1972–?

Movement

Heuer Calibre 14

Calibre 12-based automatic chronograph with an added 24-hour GMT hand, introduced about 1972 for the Autavia GMTs (1163, 11630, 11063).

Automatic · Introduced 1972 · 17 jewels

Autavia 11630 — GMT Mark 2 (Charcoal Registers)

Identifying details

Variants of 11630

Case & movement

Dial, bezel & hands

Movement

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Autavia 11630 — GMT Mark 2 (Charcoal Registers)

Identifying details

Variants of 11630

Case & movement

Dial, bezel & hands

Movement

Read more