







Seiko Panda, Ref. 6138-8020, Cal. 6138, Men’s Chronograph Vintage Watch, 1977
Deep-blue subsidiary dials at 6 and 12 contrast with the matte silver-white face of this Seiko Panda watch from 1977, reference 6138-8020. Black luminous hands and a red-tipped central timing hand sit beneath domed Hardlex. Automatic caliber 6138 powers the 40 mm steel chronograph, fitted with its original solid-link H-link bracelet and Seiko-engraved folding clasp.
Matte silver-white, deep-blue counters and tachymeter
The matte silver-white dial has two deep-blue subsidiary registers at 6 and 12, forming the contrasting Panda layout. Baton hour markers contain luminous material, and a blue tachymeter scale follows the periphery. The scale provides a speed-calculation reference alongside the timing display.
Polished black baton-style hour and minute hands have white luminous inserts. A black central chronograph seconds hand carries a vivid red tip, while white subsidiary hands contrast with the blue counters. Each colour serves a separate part of the display, keeping the main time hands and timing indications distinct.
Brushed steel, polished flanks and domed Hardlex
The stainless steel case measures 40 mm in diameter and 46 mm from lug to lug, with a 19 mm fitting. Brushed surfaces meet polished flanks, with sturdy lugs framing the attachment. The domed Hardlex crystal gives the dial a raised profile.
The original unsigned crown sits between the chronograph pushers and operates smoothly for time setting. The pushers control start, stop and reset with a positive mechanical click.
Original solid H-link steel bracelet
The original Seiko stainless steel H-link bracelet retains solid links. A folding clasp engraved with the Seiko logo completes the attachment, preserving the watch’s original metal configuration. The substantial links continue the case’s sports-watch character around the wrist.
Integrated automatic 6138 with manual winding
This automatic watch uses Seiko caliber 6138, a fully integrated chronograph with a model specification of 21 jewels. Its column wheel and vertical clutch control the chronograph, and both automatic and manual winding are available. Manual winding gives the option of winding the watch independently of wrist movement.
The caliber was introduced in the early 1970s. Its winding options and chronograph construction are useful technical distinctions alongside this example’s contrasting two-register dial.
This used example is in excellent condition, retaining all original watch components, including the H-link bracelet. It is fully serviced and fully operational, with a 12-month warranty included. Worldwide shipping is available.
| Brand | Seiko |
|---|---|
| Model | Panda |
| Reference | 6138-8020 |
| Brand Origin | Japan |
| Gender | Men's |
| Caliber | 6138 |
| Production Year | 1977 |
| Dial Color | Matte silver-white; deep-blue registers at 6/12 and blue peripheral tachymeter |
| Case Diameter | 40 mm |
| Lug to Lug | 46 mm |
| Lug Width | 19 mm |
| Case Material | Stainless steel |
| Case Finish / Coating | Brushed surfaces and polished flanks |
| Crystal | Domed Hardlex |
| Crown | Original unsigned crown between chronograph pushers; smooth time setting |
| Movement Type | Automatic |
| Category | Chronograph Vintage Watch |
| Functions | Automatic chronograph; two subsidiary registers; red-tipped central timing seconds; start/stop/reset |
| Jewels | 21; caliber specification |
| Bracelet | Original Seiko stainless steel H-link; solid links |
| Buckle / Clasp | Folding clasp engraved with Seiko logo |
| Condition | Used; excellent condition; original components |
| Fully Serviced | Yes |
| Fully Operational | Yes |
| Original Watch Components | Yes |
| Warranty | 12-month warranty |
| Chronograph Construction | Fully integrated; column wheel and vertical clutch |
| Winding | Automatic and manual winding |
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Frequently Asked Questions
When was this vintage watch produced?
The recorded production year for this watch is 1977. See the product description and photographs for more details about this individual example.
What movement does this watch use?
This watch uses an automatic mechanical movement, wound by wrist movement.The recorded caliber is 6138.For movement-specific operating instructions, please contact Vintage Watch Studio.
What servicing or checks are carried out before sale?
Our automatic mechanical watches are serviced before sale, including movement inspection, cleaning, lubrication and regulation as appropriate.Please see the listing for any additional work or measured performance specific to this watch.
Do the photographs show this actual vintage watch?
Yes. The photographs show the individual watch in this listing rather than a generic stock image. Please review the images and description for visible wear, condition and disclosed replacement parts. Age alone does not establish originality.
Can I wear this vintage watch in water?
Do not assume a vintage watch is water-resistant, even if it originally carried a water-resistance marking. Unless this individual watch has an explicitly confirmed, current water-resistance test in its listing, keep it away from swimming, showering and other water exposure.
Does this watch include a warranty?
Yes. Every watch sold by Vintage Watch Studio includes a 12-month warranty, whether mechanical or quartz. Coverage and exclusions are governed by our warranty terms.
Can I still buy this exact watch?
This individual vintage watch is no longer available. Since watches are individually sourced, an identical example cannot be guaranteed.







