Seiko Cal. 3858 - 771

The 3858-771 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3858 caliber with 26j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-524190a922d6]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1975

Related Models

• Seiko 4476-955
• Seiko 6177-109
• Seiko 0779-346
• Seiko 4594-117
• Seiko 3811-505
• Seiko 7122-458
• Seiko 7127-707
• Seiko 0742-603
• Seiko 0774-633
• Seiko 0742-306
• Seiko 4515-957
• Seiko 7082-745