Seiko Cal. 3861 - 428

The 3861-428 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3861 caliber with 35j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-fd4e32885b19]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1966

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