Seiko Cal. 4428 - 761

The Seiko 4428-761 represents an important milestone in Seiko's 1997 lineup. Powered by the 4428 caliber with 19j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-59108c0278ce]

Also known as: Monster, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1997

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