Which is cheaper, the Akrone S-05 Bleu Tonnerre or the Undone?

At MSRP the Akrone S-05 Bleu Tonnerre is the cheaper of the two at $249, against $250 for the Undone — a $1 gap before any retailer discounting.

Which is bigger, the Akrone S-05 Bleu Tonnerre or the Undone?

The Undone wears larger at 40mm versus 39mm for the Akrone S-05 Bleu Tonnerre — a 1mm difference across the dial.

Which has better water resistance, the Akrone S-05 Bleu Tonnerre or the Undone?

The Akrone S-05 Bleu Tonnerre is rated to 300m versus 50m for the Undone.

What movement does the Akrone S-05 Bleu Tonnerre run compared to the Undone?

The Akrone S-05 Bleu Tonnerre runs a mecaquartz caliber (Seiko VK64), while the Undone runs a quartz (Seiko 9F88).

Side by side

Akrone S-05 Bleu TonnerrevsUndone Undone

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Add a watch

Akrone S-05 Bleu Tonnerre

MSRP $249

See the full S-05 Bleu Tonnerre

MSRP $250

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At a glance

11 of 29 specs differ

Diameter

S-05 Bleu Tonnerre39mm

Undone40mm

Power Reserve

S-05 Bleu Tonnerre—

Undone—

Water Resistance

S-05 Bleu Tonnerre300m

Undone50m

MSRP

S-05 Bleu Tonnerre$249

Undone$250

Full specifications

Case

6 specs

Diameter

39mm

40mm

Thickness

11.4mm

0mm

Lug-to-Lug

46mm

0mm

Lug Width

20mm

0mm

Material

Titanium

Stainless Steel

Water Resistance

300m

50m

Crystal & Dial

1 specs

Crystal

Sapphire

—

Movement

3 specs

Caliber

Seiko VK64

Seiko 9F88

Type

Mecaquartz

Quartz

Power Reserve

—

Pricing

1 specs

MSRP

$249

$250

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Akrone S-05 Bleu TonnerrevsUndone Undone

At a glance

Full specifications

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