Seiko - Unknown - 沒有保留價 - 5606-7000 - 男士 - 1970-1979

Introduction
本品为一枚复古 SEIKO Lord Matic (LM) 自动机械腕表，型号 5606-7000，采用不锈钢材质并镀金（GP）。银色表盘，具备日历显示；该型号还因正面罕见的纪念性表背雕刻而更显珍贵，与日本国有铁路公司（Japan National Railways）相关，是真正具有历史意义的收藏品。

Historical & Collector Value
Lord Matic 系列代表 Seiko 在日本黄金时代的精炼机械表制造，兼具日常实用性与较高档次质感，超出普通系列。这枚手表因表背雕刻而格外突出：“Commendation Award Commemorative / President of Japanese National Railways”，表明它是赠予日本国铁职员的非零售奖赠品。对收藏者而言，这种出处为手表本身之外增添了罕有性与故事性。

Specifications
- Brand: SEIKO
- Line: Lord Matic (LM)
- Reference / Caliber code: 5606-7000 (5606, 21,600 vph)
- Movement: Automatic
- Case material: Stainless steel x Gold plating (GP)
- Dial: Silver tone
- Functions: Time / Day / Date
- Case size: Approx. 36 mm
- Wrist size: Up to approx. 18.5 cm
- Accessories: None (watch only)
- Notes: No hacking function (seconds hand does not stop)

Condition
- Rank: BC (pre-owned vintage condition)
- Running condition: Currently working.
- Timekeeping: 未对日常精确度进行严格测量；如需严格准确，请考虑送检/调校。
- Calendar: Day-date setting and operation confirmed working.
- Overall: 年代及使用痕迹可见；请仔细查看照片，它们构成描述的一部分。

Service History
- Fully tested and confirmed working (basic operation).

Shipping & Customs
- International shipping with careful packaging and tracking will be arranged.
- Import duties, VAT, and any customs-related fees are the buyer’s responsibility.