Seiko Cal. 4439 - 188

The Seiko 4439-188 represents an important milestone in Seiko's 1994 lineup. Powered by the 4439 caliber with 18j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-6ecabfd1b8f5]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1994

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