Seiko Cal. 5630 - 307

The Seiko 5630-307 represents an important milestone in Seiko's 1988 lineup. Powered by the 5630 caliber with 36j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-7664325e0c38]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1988

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