Nikko Metronomes are manufactured and assembled, including the entire parts in JAPAN.

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Wooden Jumbo

Wooden Jumbo

Jumbo with handle 110-H

It is our grand metronome, ideal for playing in concert. The grand metronome stands at 37cm, the long pendulum is easy to see. Natural tone from its select wood case which features a classy wooden outlook.
It is equipped with a handle on the backside. The handle would help carry the Jumbo out easily.

Specifications

tempo range 40 - 208 beats / min.
bell 2, 3, 4, 6
weight 1,639 g
dimensions 22.0 × 37.0 × 22.0 cm | 8.66 × 14.57 × 8.66 inches
attachment Wooden Front Cover
power Spring | No Battery
origin MADE IN JAPAN

Features and Dedication to quality

Pendulum

Pendulum

    Made of titanium
    The dynamic 21cm pendulum is perfect for ensemble use.
    It's clearly visible even from the back. Made from durable, lightweight and flexible titanium.
    (Left: Standard size, Right: This product)
Volume

Volume

    Due to its large body size, the beating sound resonates most clearly within our products.
Handle

Handle (Back side)

    Wooden
    When moving between classrooms or during hall practice sessions, it can be transported in a stable state.
    It is also effective in preventing drop accidents, and the repairs due to drops has decreased in Japan.

Front cover
Opening and closing
Front cover back
Back side

Front cover (lid)

    Hook-type
    Each unit is individually fine-tuned to a firmness that anyone can easily open and close it.
    Finger grooves are formed on the upper left and right sides, while a protrusion is created at the bottom to slide into the body opening, ensuring smooth opening and closing and a snug fit.
    The cover and main body are manufactured as a pair, with the wood grain matched.
Pendulum hook

Pendulum hook

    The pendulum can be attached or detached from either side.
Sliding weight G

Sliding weight

    Made of brass, Gold finish
    Machine-finished with a cross-hatch pattern. The fine texture not only enhances visual appeal but also provides a tactile grip, making it easier to manipulate the sliding weight.
Bottom cover

Bottom cover | Rubber feet

    Wooden
    The bottom cover is also made of wood.
    The rubber feet are attached at three points to prevent wobbling when the metronome is placed on it.
    The rubber feet also serve as slip-resistant pads.
Beat selector

Beat selector

    Push and pull sliding type
    The beat switch component is made of metal. The beat numbers are engraved.
    Compared to plastic, it is robust and offers superior operability and durability.
    Made of brass, Gold finish
Winding key

Winding key

    A shape that makes winding the power spring easy.
    Since repeated barrel polishing rounds the edges, it feels good to the touch.
    Even when the pendulum is in motion, the winding key does not rotate or move. You won't be distracted by the winding key's movement, allowing you to focus entirely on the pendulum's motion.
    Made of brass, Gold finish
Winding key_Beat selector

Usability

    Located on one side, you can wind the power spring and set the tempo without switching hands, while holding the metronome body steady with one hand.
power spring

5-turn power spring

    The movement utilizes only the portion of the power spring where torque remains constant, ensuring stable operation.
Anti-loss protrusion for sliding weight

Anti-loss protrusion for sliding weight

    Add a protrusion to the back of the pendulum's tip to prevent the sliding weight from being pulled out.
Key Retention Ring for preventing winding key Loss

Key Retention Ring for preventing winding key Loss

    Attach a retaining ring to prevent the winding key from being removed. (It is located internally and is not normally visible.)

Assembly

Assembly

    The body is crafted in our in-house workshop by cutting parts from boards and assembling them using mortise and tenon joints. Rather than simple gluing, we machine protrusions and grooves into the edges of the parts and fit them together, creating a much stronger bond.
Urethane Coating

Urethane Coating

    Mahogany color
    Through repeated coating and polishing across 13 processes, it achieves a rich, deep texture.
Board

Custom-made basswood plywood

    We use custom-made plywood composed of multiple compressed boards, offering exceptional resistance to temperature and humidity fluctuations.
    Featuring a "all-core plywood" construction where all core layers are made of basswood, not rowan wood.
    This material is also used in high-end furniture and shelving, characterized by its beautiful clean edges.
    We specially order a seamless "single-sheet" for the face, further accentuating the wood grain's beauty.

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