Seiko Cal. 5610 - 987

The 5610-987 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5610 caliber with 21j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-953f212e1a22]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1996

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