Seiko Cal. 4439 - 998

The 4439-998 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4439 caliber with 25j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-9e60d154eef6]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1987

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