Seiko Cal. 5228 - 731

The Seiko 5228-731 represents an important milestone in Seiko's 1977 lineup. Powered by the 5228 caliber with 21j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-1b92b64cd481]

Also known as: Panda

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1977

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