Seiko Cal. 5691 - 435

The 5691-435 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5691 caliber with 25j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-01deffbdf440]

Also known as: Bullhead, Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1985

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