Seiko Cal. 3891 - 522

The 3891-522 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3891 caliber with 22j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-54954e65794f]

Also known as: Monster, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1972

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