Seiko Cal. 5633 - 540

The Seiko 5633-540 represents an important milestone in Seiko's 1996 lineup. Powered by the 5633 caliber with 36j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-ed172e1c41af]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1996

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