Seiko Cal. 3828 - 665

The Seiko 3828-665 represents an important milestone in Seiko's 1991 lineup. Powered by the 3828 caliber with 32j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-f9f7a23e9ed1]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1991

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