Automatic

40 mm

BOLDR Supply Co.  Defender Siana

In stock now

$439

Buy it directly from the brand's website.

BOLDR Supply Co. Defender Siana

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What you'll get

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BOLDR Supply Co. just released a new watch

About this Watch

A Dive watch, in a round stainless steel case, 40mm, with a turquoise matte dial, sword hands and arabic numerals indices, powered by the NH35A.

It is currently available to buy directly from the brand. Within its segment, this reference is priced near the middle of the pack, close to what comparable watches typically cost. This segment covers 338 tracked dive watches in this size and price class, ranging from USD 305 to USD 499.

Diameter

40mm

Lug to lug

46mm

Between lugs

20mm

Thickness

12.3mm

Movement Type

Automatic

Movement Name

NH35A

Water resistance

20 bar

Crystal Type

Sapphire

Crystal Description

Flat sapphire lens with anti-reflective coating

Statistics

Its scarcity score of 0/100 is the lowest possible, placing it among the easiest-to-get tracked watches in the catalog. That's in line with BOLDR Supply Co.'s catalog overall.

This reference has no sell-out history of its own yet.

How BOLDR Supply Co. models usually sell out and restock

Worth tracking

Limited data

Currently available with no strong urgency signal either way.

Availability

Available

7 months straight

4/5/26

April 2026

Today

Tracked since 5/7/25 (549 days).

Last confirmed:

Price

Currently priced at $439.00, down from $443.75 on 8/21/26.

$439.00 USD

9/13/26

April 2026

Today

  • $438.86 → $439.00

    +0%

    9/13/26

  • $443.75 → $438.86

    -1.1%

    8/21/26

  • $439.00 → $443.75

    +1.1%

    8/12/26

Unchanged · 78 days

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