Seiko Cal. 6648 - 637

This Solar model from 1986 features a 35mm Two-Tone case. It features a Silver dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-0ebfcb87f6e7]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1986

Related Models

• Seiko 7043-337
• Seiko 5213-921
• Seiko 5290-730
• Seiko 5231-335
• Seiko 7158-458
• Seiko 3880-605
• Seiko 0762-426
• Seiko 7039-993
• Seiko 6161-420
• Seiko 3841-650
• Seiko 6638-418
• Seiko 7074-208