Seiko Cal. 4428 - 182

The Seiko 4428-182 represents an important milestone in Seiko's 1968 lineup. Powered by the 4428 caliber with 23j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-aee2b5628e2a]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1968

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