Seiko Cal. 3820 - 250

The Seiko 3820-250 represents an important milestone in Seiko's 1987 lineup. Powered by the 3820 caliber with 33j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-17e50fcba375]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1987

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