Seiko Cal. 4521 - 620

The 4521-620 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4521 caliber with 33j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-1ce1272d56e2]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1987

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