Seiko Cal. 5637 - 234

The 5637-234 is a sought-after Solar piece from Seiko's golden era. Powered by the 5637 caliber with 21j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-3fc7be785a6a]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1988

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