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Home/Browse/Otsuka Lotec/No. 8
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Otsuka Lotec No. 8
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Otsuka Lotec · No. 8

Otsuka Lotec No. 8

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Case

Diameter
31mm
Thickness
10.8mm
Lug-to-lug
47.8mm
Lug width
24mm
Material
Stainless Steel
Water resistance
30m

Crystal & dial

Crystal
Sapphire

Movement

Caliber
Miyota 90S5
Type
Automatic
Power reserve
32h

Miyota

Miyota's open-heart variant of the 9015 platform, featuring a skeletonized dial-side plate that exposes the balance wheel through a cutout in the dial. Shares the same reliable 28,800 vph architecture and 42-hour power reserve as the standard 9015. Popular among microbrands offering open-heart designs at accessible price points without resorting to Chinese movements.

Design language

Case shape
rectangular
Dial style
sector
Sub-dials
1
Bezel
none
Bracelet
rubber_strap

AI-detected from the product image

Alternatives

Market

RetailNot listed

No forum listings recorded for this watch yet.

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Community

“

Owners widely praise the Otsuka Lotec 8号 for its unique, inventive design inspired by analog meters and mixing consoles, featuring a captivating jumping hour and retrograde minute display. The watch is considered a conversation starter and a piece of wearable art, with one owner noting its well-wearing size and protected crown despite the 31mm case. The finishing is described as more refined than expected, and the movement, a Miyota 90S5 with an in-house module, is noted for its mechanical theatre. However, some wish the 31mm case were smaller, and acquiring one is difficult due to demand, leading to significant premiums on the secondary market, with prices around $6,300 to $9,750 USD. On balance, owners and reviewers rate the Otsuka Lotec 8号 highly for its compelling three-dimensional mechanism and unique, award-winning design.

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