Seiko Cal. 3861 - 423

The 3861-423 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3861 caliber with 35j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-d80ac302a8c9]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1967

Related Models

• Seiko 6679-505
• Seiko 0776-237
• Seiko 6335-144
• Seiko 4546-422
• Seiko 7136-504
• Seiko 6116-617
• Seiko 4482-771
• Seiko 3884-520
• Seiko 6612-463
• Seiko 7186-374
• Seiko 5230-378
• Seiko 6617-466