Seiko Cal. 5694 - 648

The Seiko 5694-648 represents an important milestone in Seiko's 1987 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-19d4367422c4]

Also known as: Monster, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1987

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