Seiko Cal. 3899 - 554

The 3899-554 is a sought-after Solar piece from Seiko's golden era. Powered by the 3899 caliber with 33j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-592a39d877e5]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1978

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