【Certified Authenticity / Genuine / Official Product / Full Refund Guarantee】

All items are priced significantly lower than the market value at major resale shops, and are listed at prices that are close to the limit of bankruptcy risk.

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【Condition of the Product】

Rank: SA

Minor light scratches on the case back and belt, slight signs of use

No fogging on the crystal

All functions: operate normally without issues

Battery replacement timing: -

※: The belt is a genuine part.

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【Product Rank / Quick Reference Table】

N: New

S: Like new

SA: Excellent condition

A ~ AB: Overall clean

BA ~ B: Good condition

BC: Typical used item

C ~ D: Heavily damaged used item

J: Junk item

Damage levels: Very small / Small / Medium / Large

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【Product Details】

Management Number: X626

Purchase date at Eco Ring: July 13, 2026

Brand: SEIKO (Seiko)

Type: Wristwatch / Mechanical / Automatic / Analog / 3 Hands

Line/Model: First Black Monster

Model Number: 7S26-0350 / SKX779

Features: Diver’s watch / Y2K / 2000s / Large / Heavy / Noticeable / Logo / Mark / Metal bracelet / Premium included / High brand / Auto movement / Rare / Popular / Stylish

Target Gender: Men

Case and Band Material: Stainless Steel

Included Functions:
- Automatic winding
- Screw-down crown
- Unidirectional bezel
- Calendar (Day-Date display / English / Spanish switchable)
- 200m water resistance

※: Due to movement specifications, hand-winding function is not included.

Color:

Dial: Black tone

Belt: Silver tone

Size:

Case width: 42.5mm (excluding crown)

Thickness: 12.8mm

Lug width: 20.1mm

Wrist circumference: 185mm

Belt width: 17.9mm to 23.1mm (maximum)

※: Since no spare links are included, adjustments to shorten the belt are limited to what is feasible.

Weight: 172g

Serial Number: 284833

Movement Number: 7S26

Included Accessories: Box, instruction manual, warranty card

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Thank you very much for always viewing.

This is a Seiko First Black Monster wristwatch that exudes a powerful aura with an overwhelming presence on the wrist.

Its edgy form, reminiscent of early 2000s Y2K style, adds a playful sophistication suitable for adult men.

The substantial weight of 172 grams conveys the solid status unique to Japan’s renowned brand.

Using this exquisite piece will add a strong accent to your usual coordination, creating a refined style that attracts attention.

Any questions, no matter how small, are very welcome 24 hours a day♪
Thank you very much in advance (o^-^o)

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Lexead (レクシード) has been operating since December 2014 in Moriya City, Ibaraki Prefecture.

- “Overwhelming presence that clearly indicates a high brand at a glance”
- “A rare model that enhances the customer’s unique personality”
- “A lifelong item that is not influenced by trends and can be used for many years”
- “An item that increases in value the more time passes and the more it is loved”

We regularly list numerous high-brand bags, wallets, wristwatches, and ties every Saturday, meeting the above conditions.

All items are listed at the lowest market prices from major pawnshops and resale shops nationwide, and are appraised by our store and AACD member companies (Eco Ring, Ocnnet, Monobank, etc.).

With over 10 years of experience as brand appraisers, we conduct strict inspections and grading based on rigorous standards, so you can purchase with confidence.

Any questions, no matter how small, are very welcome 24 hours a day♪

“We promise to sincerely do our best so that our customers can shop with the utmost peace of mind anywhere.”

We would be honored to have a connection with you.
Thank you very much in advance (o^-^o)

Business License: No. 401270001499, Ibaraki Prefectural Public Safety Commission

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【Important Notes】

The condition of accessories included as a service is not included in the product’s rank.

Depending on your LCD settings, there may be differences in the color of the product.

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【For Customer Peace of Mind】

“Full Refund Guarantee”

If there is a serious problem with the product that differs from the description, please contact us before providing your receipt evaluation.

Please note that we cannot accept a full refund guarantee in the following cases:

1. Returns due to customer’s convenience, such as differences in image perception.

2. Damage that was not present before shipping.

“Cleaning Service”

To ensure you enjoy the product comfortably, we will clean it for up to approximately 40 minutes before shipping.

※: Cleaning applies only to items ranked S or below, and does not improve the rank of the product.

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We thoroughly manage products in a dark room without pets or smokers, using air purifiers, dehumidifiers, and air conditioners.

We ship using new cardboard boxes, air cushions, and other packaging materials.