Seiko Cal. 3894 - 621

The 3894-621 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3894 caliber with 33j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-36b90d3b184a]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1985

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