Seiko Cal. 3894 - 507

The Seiko 3894-507 represents an important milestone in Seiko's 1971 lineup. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-5c08b8b6019e]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1971

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