Seiko Cal. 3828 - 274

The Seiko 3828-274 represents an important milestone in Seiko's 1978 lineup. Powered by the 3828 caliber with 33j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-4289f865f7b7]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1978

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