Seiko Cal. 6221 - 437

The 6221-437 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6221 caliber with 25j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-f2ba78c200f4]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1996

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