Seiko Cal. 4455 - 684

The 4455-684 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4455 caliber with 30j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-b0c5704edba3]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1977

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