Seiko Cal. 6121 - 838

The 6121-838 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6121 caliber with 35j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-00ec79fd64ba]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1971

Related Models

• Seiko 6179-622
• Seiko 5634-660
• Seiko 7162-533
• Seiko 6143-731
• Seiko 6625-222
• Seiko 6387-242
• Seiko 3885-979
• Seiko 0735-218
• Seiko 4555-594
• Seiko 6679-873
• Seiko 6373-917
• Seiko 5242-562