Seiko Cal. 3827 - 278

The Seiko 3827-278 represents an important milestone in Seiko's 1976 lineup. Powered by the 3827 caliber with 24j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-589e79e6cfd7]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1976

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