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Alpina · Startimer

Alpina Startimer Pilot Automatic (41 mm)

Reference AL-525BBG4S26 · Tool · 41 mm

121234567891011Ø 41 mm
Illustration drawn from the specifications: case to scale, colours and style approximate. Not a photo. Photos on the official page

Specifications

Reference
AL-525BBG4S26
Family
Startimer
Category
Tool
Status
Current
Case material
Stainless steel
Case diameter
41 mm
Case thickness
11.5 mm Official
Lug-to-lug
—
Lug width
—
Water resistance
100 m
Bezel
—
Calibre
AL-525 (SW200 base) Official
Power reserve
38 h

Official product page · retrieved October 25, 2026

Does it fit your wrist?

Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.

121234567891011No lug-to-lug dataFlat top of the wrist 54.1 mm
Top view on a wrist, to scale
Flat top of the wrist 54.1 mmNo lug-to-lug dataCase diameter 41 mm
Side view, across the wrist

No lug-to-lug figure exists for this reference yet, so fit cannot be computed.

Measurements and sources

Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.

Case thickness

Value Type Source Date
11.5 mm Official Alpina October 25, 2026

Lug-to-lug

No source gave this figure yet.

Lug width

Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.

No source gave this figure yet.

Calibre source

Official Alpina · retrieved October 25, 2026

Other versions in the same case

These references differ only by dial, bracelet or bezel colour. The brand gives them the same case dimensions, so the figures on this page apply to them too.

Other Startimer references

Watch Ø Thickness Lug-to-lug Calibre
Startimer Pilot Automatic (40 mm) AL-525BW4S36 40 mm 11.5 mm — AL-525 (La Joux-Perret base)
Startimer Pilot Solarmetre AL-140BLW3S26 38 mm 9.32 mm — AL-140
Startimer Pilot Quartz Chronograph Big Date AL-372BW4S26B 41 mm 12.75 mm — AL-372 (Ronda 8040 base)
Startimer Pilot Chronograph Automatic IFR Alpina x Watch Angels AL-570NW4S46 43 mm 15.9 mm — AL-570

Other Alpina models

Watch Ø Thickness Lug-to-lug Calibre
Alpiner 4 Automatic AL-525N4AQ6 40 mm 12.5 mm — AL-525 (SW200 base)
Diver 300 Heritage (AL-520BY4H6) AL-520BY4H6 42 mm 12.3 mm — AL-520 (SW200 base)
Diver 300 Heritage (AL-525S4H6) AL-525S4H6 42 mm 12.3 mm — AL-525 (SW200 base)
Alpiner Extreme Chronograph Automatic AL-730SB4AE6B 41 mm 14.3 mm — AL-730 (SW510 base)
Seastrong Diver Extreme Automatic AL-525B3VE6 39 mm 12.65 mm — AL-525 (SW200 base)
Seastrong Diver Extreme Automatic Alpina x The Real Time Show AL-520G3VE6 39 mm 12.65 mm — AL-520 (SW200 base)
Show 15 more
Watch Ø Thickness Lug-to-lug Calibre
Seastrong Diver Extreme Automatic GMT AL-560B3VE6 39 mm 12.8 mm — AL-560 (SW330 base)
Seastrong Diver Extreme Automatic x Route du Rhum – Destination Guadeloupe AL-525T3VE6 39 mm 13.4 mm — AL-525 (SW200 base)
Alpiner Extreme Automatic (41 mm) AL-525B4AE6 41 mm 11.5 mm — AL-525 (SW200 base)
Alpiner Extreme Regulator Automatic AL-650DGN4AE6 41 mm 12 mm — AL-650 (SW461 base)
Date Manufacture AL-706W4E6 41.5 mm 13 mm — AL-706
Alpiner Extreme Automatic (39 mm) AL-525BG3AE6 39 mm 11.5 mm — AL-525 (SW200 base)
Alpiner Extreme Automatic Freeride World Tour Special Edition AL-525FWT3AE6 39 mm 11.5 mm — AL-525
Alpiner Extreme Skeleton Automatic AL-520GSKT3AE6B 39 mm 11.5 mm — AL-520 (SW200 base)
Alpiner Extreme Automatic Titanium AL-525S3AE1B 39 mm 11.5 mm — AL-525 (SW200 base)
Heritage Automatic AL-520BG3SH6 38 mm 10.15 mm — AL-520 (SW200 base)
Alpiner Extreme Solarmetre AL-140BRG3AE6B 37.5 mm 10.19 mm — AL-140
Alpiner Extreme Quartz AL-220BG2AE6B 34 mm 8.35 mm — AL-220 (Ronda 505 base)
Heritage Alpiner Carrée Automatic AL-530N3C6 32.5 mm 10.55 mm — AL-530
Heritage Carrée Automatic 140 Years AL-530BA3C6 32.5 mm 9.71 mm — FC-530 (SW261 base)
Heritage Tropic-Proof Handwinding AL-480B2H6 34 mm 9.25 mm — AL-480

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