

Lugs stay on wrists from about 6.5 in (lug-to-lug rule of thumb)
Last checked Oct 26, 2026
View on Firle Watches’s site ↗This is the original No. 001 Sennen Automatic in White & Stainless Steel, preserved as part of the FIRLE archive. This collector piece is sold out and remains listed for reference only.
Details and photos come from Firle Watches’s website, last checked Oct 26, 2026. Specs were read automatically and may contain mistakes.
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